New physics searches via angular distributions of $ \bar{B} \to D^* (\to D \pi) \tau (\to \ell \nu_\tau \bar{\nu}_\ell) \bar{\nu}_\tau$ decays

Alakabha Datta; Bhubanjyoti Bhattacharya; Emi Kou; Lopamudra Mukherjee; Tejhas Kapoor; Thomas E. Browder

arxiv: 2411.09414 · v3 · submitted 2024-11-14 · ✦ hep-ph · hep-ex

New physics searches via angular distributions of bar{B} to D^* (to D π) τ (to ell ν_τ bar{ν}_ell) bar{ν}_τ decays

Bhubanjyoti Bhattacharya , Thomas E. Browder , Alakabha Datta , Tejhas Kapoor , Emi Kou , Lopamudra Mukherjee This is my paper

Pith reviewed 2026-05-23 17:47 UTC · model grok-4.3

classification ✦ hep-ph hep-ex

keywords B meson decaysnew physicsangular distributionstau leptonsright-handed currentstensor currentsB anomalieslattice QCD form factors

0 comments

The pith

A measurable angular distribution in decays with tau to lepton allows fitting for new physics currents using only reconstructed lepton and D*.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper defines an angular distribution for the full decay chain where the tau decays to a lepton plus neutrinos, so that only the lepton and the D* need to be reconstructed experimentally. This distribution encodes information on beyond-Standard-Model couplings that are motivated by observed B anomalies. Simulated data are used to show that a fit can extract the right-handed current coefficient with roughly 5 percent statistical sensitivity and the tensor current with roughly 6 percent sensitivity in near-future experiments. Recent lattice QCD results on B to D* form factors are incorporated to obtain correlations between those form factors and the new physics parameters.

Core claim

The full process bar B to D* (to D pi) tau (to ell nu_tau bar nu_ell) bar nu_tau yields a measurable angular distribution when only the lepton and D* are reconstructed; a fit to this distribution extracts new physics parameters such as the right-handed and tensor coefficients.

What carries the argument

The angular distribution built from the reconstructed lepton and D* four-momenta in the tau decay chain, which remains sensitive to new physics despite the undetected neutrinos.

If this is right

Experiments can constrain the right-handed new physics current to order 5 percent using this angular fit.
Tensor new physics currents can be constrained to order 6 percent.
Correlations between lattice QCD form factors and new physics parameters become accessible.
The method supplies an independent handle on explanations of B anomalies that does not require full tau momentum reconstruction.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

The same angular distribution could be combined with branching-fraction measurements in global fits for tighter new physics bounds.
Application of the technique to other modes with multiple missing neutrinos may be feasible.
Control-sample studies in real data would be needed to confirm that simulation faithfully captures the angular shapes.
Higher-luminosity runs could push the sensitivities below the percent level.

Load-bearing premise

Monte Carlo simulation of the decay chain and detector response accurately reproduces the true experimental angular distributions and backgrounds without mismodeling that would bias the extracted new physics parameters.

What would settle it

A fit performed on real data from Belle II or LHCb that yields new physics parameter values or uncertainties inconsistent with the 5-6 percent sensitivities obtained from the simulated samples.

read the original abstract

The study of $\bar{B} \to D^* \tau {\bar{\nu}}_\tau$ angular distribution can be used to obtain information about new physics (or beyond the Standard Model) couplings, which are motivated by various $B$ anomalies. However, the inability to measure precisely the three-momentum of the $\tau$ lepton hinders such measurements, as the tau decay contains one or more undetected neutrinos. Here, we present a measurable angular distribution of $\bar{B} \to D^* \tau {\bar{\nu}}_\tau$ by considering the additional decay $\tau \to \ell \nu_\tau \bar{\nu}_\ell$, where $\ell \in \{ e , \mu \}$. The full process used is $\bar{B} \to D^* (\to D \pi) \tau (\to \ell \nu_\tau \bar{\nu}_\ell) \bar{\nu}_\tau$, in which only the $\ell$ and $D^*$ are reconstructed. A fit to the experimental angular distribution of this process can be used to extract information on new physics parameters. To demonstrate the feasibility of this approach, we generate simulated data for this process and perform a sensitivity study to obtain the expected statistical errors on new physics parameters from experiments in the near future. We obtain a sensitivity of the order of 5% for the right-handed current and around 6% for the tensor current. In addition, we use the recent lattice QCD data on $B \to D^*$ form factors and obtain correlations between form factors and new physics parameters.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Desk Editor's Note private letter to a colleague

The paper proposes using the visible angular distribution from B to D* tau nu with tau to lepton to constrain right-handed and tensor NP at 5-6% level via MC, but the result stands or falls on unvalidated simulation accuracy.

read the letter

The main takeaway is that this work identifies a measurable angular distribution in the D, pi, and lepton from the full decay chain, avoiding the missing tau momentum, and runs a sensitivity study claiming order 5% reach on the right-handed coefficient and 6% on the tensor one using near-future data samples. They fold in recent lattice form factors and their correlations, which is a concrete step forward from generic EFT discussions. The setup is straightforward and targets modes already under study at Belle II and LHCb. That part is useful and worth noting for people tracking b to c anomalies. The soft spot is exactly where the stress test flags it: all the quoted sensitivities come from generated events with no shown cross-checks against real data, no breakdown of background contributions to the angular shapes, and no explicit test that efficiencies preserve the NP information. If the MC mismodels any correlation between the chosen angles and the detector response or backgrounds, the error bars will not hold. The paper treats this as a feasibility study rather than a data-driven result, so the numbers are illustrative rather than demonstrated. This is for experimentalists and theorists already working on angular analyses or effective field theory fits to B anomalies. A reader who wants a new handle on right-handed or tensor currents without full tau reconstruction will get something practical out of it. The thinking is clear and the inputs are standard, so the paper is coherent on its own terms even if one disagrees with how optimistic the MC assumption is. I would send it to peer review with the expectation that referees will press on the simulation validation and background modeling details.

Referee Report

2 major / 1 minor

Summary. The paper proposes a measurable angular distribution for the decay chain B-bar -> D* (-> D pi) tau (-> l nu_tau nu-bar_l) nu-bar_tau (with only l and D* reconstructed) to probe new physics in b->c tau nu transitions. It performs a sensitivity study on simulated data incorporating lattice QCD B->D* form factors, claiming expected statistical sensitivities of order 5% on the right-handed current coefficient and 6% on the tensor current coefficient.

Significance. If the Monte Carlo modeling holds, the approach could provide a complementary handle on new physics parameters motivated by B anomalies by using only visible particles. A strength is the explicit use of recent lattice QCD data on B->D* form factors together with correlations between form factors and new physics parameters.

major comments (2)

[Abstract] Abstract and sensitivity study section: the quoted 5-6% sensitivities are derived entirely from generated MC events; the manuscript provides no explicit cross-checks, background modeling details, or efficiency studies showing that the chosen angular observables retain their NP sensitivity after reconstruction and selection, which is load-bearing for the central feasibility claim.
[sensitivity study] The weakest assumption identified is the accuracy of the MC simulation of angular distributions, backgrounds, and detector response; without validation against real data or toy studies demonstrating robustness to mismodeling correlated with the NP directions, the reported statistical errors cannot be taken as reliable projections.

minor comments (1)

Clarify the precise definition and binning of the angular observables used in the fit, including any integration over unobservable variables.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for the constructive comments. This manuscript is a theoretical proposal introducing a reconstructible angular observable for probing new physics in b→cτν transitions, with Monte Carlo simulations used solely to project statistical sensitivities. We address each major comment below.

read point-by-point responses

Referee: [Abstract] Abstract and sensitivity study section: the quoted 5-6% sensitivities are derived entirely from generated MC events; the manuscript provides no explicit cross-checks, background modeling details, or efficiency studies showing that the chosen angular observables retain their NP sensitivity after reconstruction and selection, which is load-bearing for the central feasibility claim.

Authors: We agree that the quoted sensitivities are statistical projections obtained from generated MC events without detailed background modeling, efficiency curves, or reconstruction studies. The focus of the work is to demonstrate that the proposed angular distribution remains sensitive to NP parameters when only the visible lepton and D* are reconstructed. Full experimental details of this kind lie outside the scope of a theoretical sensitivity study. We will revise the sensitivity study section to explicitly state the assumptions regarding reconstruction and selection. revision: partial
Referee: [sensitivity study] The weakest assumption identified is the accuracy of the MC simulation of angular distributions, backgrounds, and detector response; without validation against real data or toy studies demonstrating robustness to mismodeling correlated with the NP directions, the reported statistical errors cannot be taken as reliable projections.

Authors: The reported errors are purely statistical projections that assume the MC correctly models the kinematics and angular distributions. No claim is made of robustness to mismodeling or detector effects, and validation against real data is not possible in this theoretical paper. We will add text in the sensitivity study section clarifying that the projections assume ideal MC modeling and that any correlated systematics would require dedicated experimental studies. revision: partial

Circularity Check

0 steps flagged

No circularity: sensitivity estimates arise from forward Monte Carlo simulation, not from any definitional or self-referential reduction.

full rationale

The paper's core claim is a sensitivity study performed by generating simulated events for the full decay chain, applying selections, and fitting the resulting angular distributions to extract expected uncertainties on NP Wilson coefficients. This is a standard forward simulation exercise whose numerical outputs are not forced by the paper's own equations or by any cited prior result from the same authors. Lattice form-factor inputs are external; no parameter is fitted to a subset of the target observables and then relabeled as a prediction, and no uniqueness theorem or ansatz is smuggled in via self-citation. The derivation chain therefore remains independent of its own results.

Axiom & Free-Parameter Ledger

2 free parameters · 2 axioms · 0 invented entities

The paper relies on standard effective field theory operators for b to c transitions and lattice QCD form factors as inputs; the new physics coefficients themselves are the quantities being measured rather than free parameters introduced by the authors.

free parameters (2)

right-handed current coefficient
Coefficient of the right-handed vector operator; target of the angular fit.
tensor current coefficient
Coefficient of the tensor operator; target of the angular fit.

axioms (2)

domain assumption Effective field theory description of b to c tau nu transitions with dimension-6 operators
Framework used to parametrize possible new physics contributions.
domain assumption Lattice QCD calculations provide reliable B to D* form factors with quoted uncertainties
Used to obtain correlations between form factors and new physics parameters.

pith-pipeline@v0.9.0 · 5875 in / 1403 out tokens · 23080 ms · 2026-05-23T17:47:51.686006+00:00 · methodology

discussion (0)

Reference graph

Works this paper leans on

83 extracted references · 83 canonical work pages · 36 internal anchors

[1]

Explaining B->D\tau\nu, B->D*\tau\nu and B->\tau\nu in a 2HDM of type III

A. Crivellin, C. Greub and A. Kokulu, Explaining B → Dτ ν, B → D∗τ ν and B → τ ν in a 2HDM of type III , Phys. Rev. D 86 (2012) 054014 [ 1206.2634]

work page internal anchor Pith review Pith/arXiv arXiv 2012
[2]

Sensitivity to charged scalars in $B\to D^{(*)}\tau\nu_\tau$ and $B\to\tau\nu_\tau$ decays

A. Celis, M. Jung, X.-Q. Li and A. Pich, Sensitivity to charged scalars in B → D(∗)τ ντ and B → τ ντ decays, JHEP 01 (2013) 054 [ 1210.8443]

work page internal anchor Pith review Pith/arXiv arXiv 2013
[3]

A perturbed lepton-specific two-Higgs-doublet model facing experimental hints for physics beyond the Standard Model

A. Crivellin, J. Heeck and P. Stoffer, A perturbed lepton-specific two-Higgs-doublet model facing experimental hints for physics beyond the Standard Model , Phys. Rev. Lett. 116 (2016) 081801 [1507.07567]

work page internal anchor Pith review Pith/arXiv arXiv 2016
[4]

Charged Higgs bosons from the 3-3-1 models and the $\mathcal{R}(D^{(*)})$ anomalies

M. Wei and Y. Chong-Xing, Charged Higgs bosons from the 3-3-1 models and the R(D(∗)) anomalies, Phys. Rev. D 95 (2017) 035040 [ 1702.01255]. – 33 –

work page internal anchor Pith review Pith/arXiv arXiv 2017
[5]

Charged-Higgs on $R_{D^{(*)}}$, $\tau$ polarization, and FBA

C.-H. Chen and T. Nomura, Charged-Higgs on RD(∗), τ polarization, and FBA , Eur. Phys. J. C 77 (2017) 631 [ 1703.03646]

work page internal anchor Pith review Pith/arXiv arXiv 2017
[6]

$B\to D^{(*)}\tau\nu_\tau$ in the 2HDM with an anomalous $\tau$ coupling

J.-P. Lee, B → D(∗)τ ντ in the 2HDM with an anomalous τ coupling, Phys. Rev. D 96 (2017) 055005 [1705.02465]

work page internal anchor Pith review Pith/arXiv arXiv 2017
[7]

$R(D^{(*)})$ in a general two Higgs doublet model

S. Iguro and K. Tobe, R(D(∗)) in a general two Higgs doublet model , Nucl. Phys. B 925 (2017) 560 [ 1708.06176]

work page internal anchor Pith review Pith/arXiv arXiv 2017
[8]

Beyond $\mathcal{R}(D^{(*)})$ with the general 2HDM-III for $b\to c\tau\nu$

R. Martinez, C.F. Sierra and G. Valencia, Beyond R(D(∗)) with the general type-III 2HDM for b → cτ ν, Phys. Rev. D 98 (2018) 115012 [ 1805.04098]

work page internal anchor Pith review Pith/arXiv arXiv 2018
[9]

Towards a viable scalar interpretation of $R_{D^{(*)}}$

S. Fraser, C. Marzo, L. Marzola, M. Raidal and C. Spethmann, Towards a viable scalar interpretation of RD(∗), Phys. Rev. D 98 (2018) 035016 [ 1805.08189]

work page internal anchor Pith review Pith/arXiv arXiv 2018
[10]

Cardozo, J.H

J. Cardozo, J.H. Mu˜ noz, N. Quintero and E. Rojas, Analysing the charged scalar boson contribution to the charged-current B meson anomalies, J. Phys. G 48 (2021) 035001 [2006.07751]

work page arXiv 2021
[11]

Datta, D

A. Datta, D. Marfatia and L. Mukherjee, Hint of a new scalar interaction in LHCb data? , Eur. Phys. J. C 84 (2024) 556 [ 2305.00614]

work page arXiv 2024
[12]

It's all right(-handed neutrinos): a new $W'$ model for the $R_{D^{(*)}}$ anomaly

P. Asadi, M.R. Buckley and D. Shih, IIt’s all right(-handed neutrinos): a new W ′ model for the RD(∗) anomaly, JHEP 09 (2018) 010 [ 1804.04135]

work page internal anchor Pith review Pith/arXiv arXiv 2018
[13]

$R(D^{(*)})$ from $W'$ and right-handed neutrinos

A. Greljo, D.J. Robinson, B. Shakya and J. Zupan, R(D(∗))f romW ′ and right-handed neutrinos, JHEP 09 (2018) 169 [ 1804.04642]

work page internal anchor Pith review Pith/arXiv arXiv 2018
[14]

Right-handed Neutrinos and $R(D^{(*)})$

D.J. Robinson, B. Shakya and J. Zupan, Right-handed neutrinos and R(D (∗)), JHEP 02 (2019) 119 [ 1807.04753]

work page internal anchor Pith review Pith/arXiv arXiv 2019
[15]

K.S. Babu, B. Dutta and R.N. Mohapatra, A theory of R(D ∗, D) anomaly with right-handed currents, JHEP 01 (2019) 168 [ 1811.04496]

work page internal anchor Pith review Pith/arXiv arXiv 2019
[16]

Mandal, C

R. Mandal, C. Murgui, A. Pe˜ nuelas and A. Pich, The role of right-handed neutrinos in b → cτ ¯ν anomalies, JHEP 08 (2020) 022 [ 2004.06726]

work page arXiv 2020
[17]

Gomez, N

J.D. Gomez, N. Quintero and E. Rojas, Charged current b → cτ ¯ντ anomalies in a general W ′ boson scenario, Phys. Rev. D 100 (2019) 093003 [ 1907.08357]

work page arXiv 2019
[18]

Testing leptoquark models in $\bar B \to D^{(*)} \tau \bar\nu$

Y. Sakaki, M. Tanaka, A. Tayduganov and R. Watanabe, Testing leptoquark models in ¯B → D(∗)τ ¯ν , Phys. Rev. D 88 (2013) 094012 [ 1309.0301]

work page internal anchor Pith review Pith/arXiv arXiv 2013
[19]

Revisiting the one leptoquark solution to the $R(D^{(\ast)})$ anomalies and its phenomenological implications

X.-Q. Li, Y.-D. Yang and X. Zhang, Revisiting the one leptoquark solution to the R(D(∗)) anomalies and its phenomenological implications , JHEP 08 (2016) 054 [ 1605.09308]

work page internal anchor Pith review Pith/arXiv arXiv 2016
[20]

On the Minimal Flavor Violating Leptoquark Explanation of the $R_{D^{(*)}}$ Anomaly

S. Bansal, R.M. Capdevilla and C. Kolda, Constraining the minimal flavor violating leptoquark explanation of the RD(∗) anomaly, Phys. Rev. D 99 (2019) 035047 [ 1810.11588]

work page internal anchor Pith review Pith/arXiv arXiv 2019
[21]

Aydemir, T

U. Aydemir, T. Mandal and S. Mitra, Addressing the RD(∗) anomalies with an S1 leptoquark from SO(10) grand unification, Phys. Rev. D 101 (2020) 015011 [ 1902.08108]

work page arXiv 2020
[22]

Cheung, Z.-R

K. Cheung, Z.-R. Huang, H.-D. Li, C.-D. L¨ u, Y.-N. Mao and R.-Y. Tang, Revisit to the b → cτ ν transition: In and beyond the SM , Nucl. Phys. B 965 (2021) 115354 [ 2002.07272]

work page arXiv 2021
[23]

Iguro, T

S. Iguro, T. Kitahara and R. Watanabe, Global fit to b → cτ ν anomalies 2022 mid-autumn , 2210.10751

work page arXiv 2022
[30]

Belle II collaboration, Recent Belle II results on semileptonic ! decays and tests of lepton-flavor universality , 31st International Symposium on Lepton Photon Interactions at High Energies (2023)

work page 2023
[33]

HFLA Vcollaboration, Averages of b-hadron, c-hadron, and τ-lepton properties as of 2021 , Phys. Rev. D 107 (2023) 052008 [ 2206.07501]

work page arXiv 2021
[34]

BaBar collaboration, Evidence for an excess of ¯B → D(∗)τ −¯ντ decays, Phys. Rev. Lett. 109 (2012) 101802 [ 1205.5442]

work page internal anchor Pith review Pith/arXiv arXiv 2012
[35]

BaBar collaboration, Measurement of an Excess of ¯B → D(∗)τ −¯ντ Decays and Implications for Charged Higgs Bosons , Phys. Rev. D 88 (2013) 072012 [ 1303.0571]

work page internal anchor Pith review Pith/arXiv arXiv 2013
[36]

Belle collaboration, Measurement of the branching ratio of ¯B → D(∗)τ −¯ντ relative to ¯B → D(∗)ℓ−¯νℓ decays with hadronic tagging at Belle , Phys. Rev. D 92 (2015) 072014 [1507.03233]

work page internal anchor Pith review Pith/arXiv arXiv 2015
[37]

Belle collaboration, Measurement of the τ lepton polarization and R(D∗) in the decay ¯B → D∗τ −¯ντ, Phys. Rev. Lett. 118 (2017) 211801 [ 1612.00529]

work page internal anchor Pith review Pith/arXiv arXiv 2017
[38]

Belle collaboration, Measurement of the τ lepton polarization and R(D∗) in the decay ¯B → D∗τ −¯ντ with one-prong hadronic τ decays at Belle , Phys. Rev. D 97 (2018) 012004 [1709.00129]

work page internal anchor Pith review Pith/arXiv arXiv 2018
[39]

Belle collaboration, Measurement of R(D) and R(D∗) with a semileptonic tagging method , Phys. Rev. Lett. 124 (2020) 161803 [ 1910.05864]

work page arXiv 2020
[40]

Belle-II collaboration, A test of lepton flavor universality with a measurement of R(D∗) using hadronic B tagging at the Belle II experiment , 2401.02840

work page arXiv
[41]

LHCb collaboration, Measurement of the ratios of branching fractions R(D∗) and R(D0), Phys. Rev. Lett. 131 (2023) 111802 [ 2302.02886]

work page arXiv 2023
[42]

LHCb collaboration, Test of lepton flavor universality using B0 →D*-τ+ντ decays with hadronic τ channels, Phys. Rev. D 108 (2023) 012018 [ 2305.01463]. – 35 –

work page arXiv 2023
[43]

LHCb Collaboration, B → clν decays at LHCb, in XXII International Conference on Heavy Quarks and Leptons , (Grenoble, France), 2023

work page 2023
[44]

LHCb collaboration, Test of lepton universality using B+ → K +ℓ+ℓ− decays, Phys. Rev. Lett. 113 (2014) 151601 [ 1406.6482]

work page internal anchor Pith review Pith/arXiv arXiv 2014
[45]

LHCb collaboration, Test of lepton universality with B0 → K ∗0ℓ+ℓ− decays, JHEP 08 (2017) 055 [ 1705.05802]

work page internal anchor Pith review Pith/arXiv arXiv 2017
[46]

LHCb collaboration, Search for lepton-universality violation in B+ → K +ℓ+ℓ− decays, Phys. Rev. Lett. 122 (2019) 191801 [ 1903.09252]

work page internal anchor Pith review Pith/arXiv arXiv 2019
[47]

LHCb collaboration, Test of lepton universality with Λ0 b → pK −ℓ+ℓ− decays, JHEP 05 (2020) 040 [ 1912.08139]

work page arXiv 2020
[48]

18 (2022) 277 [ 2103.11769]

LHCb collaboration, Test of lepton universality in beauty-quark decays , Nature Phys. 18 (2022) 277 [ 2103.11769]

work page arXiv 2022
[49]

LHCb collaboration, Tests of lepton universality using B0 → K 0 Sℓ+ℓ− and B+ → K ∗+ℓ+ℓ− decays, Phys. Rev. Lett. 128 (2022) 191802 [ 2110.09501]

work page arXiv 2022
[50]

Belle collaboration, Lepton-Flavor-Dependent Angular Analysis of B → K ∗ℓ+ℓ−, Phys. Rev. Lett. 118 (2017) 111801 [ 1612.05014]

work page internal anchor Pith review Pith/arXiv arXiv 2017
[51]

BaBar collaboration, Measurement of Branching Fractions and Rate Asymmetries in the Rare Decays B → K (∗)l+l−, Phys. Rev. D 86 (2012) 032012 [ 1204.3933]

work page internal anchor Pith review Pith/arXiv arXiv 2012
[52]

BELLE collaboration, Test of lepton flavor universality and search for lepton flavor violation in B → Kℓℓ decays, JHEP 03 (2021) 105 [ 1908.01848]

work page arXiv 2021
[53]

Belle collaboration, Test of Lepton-Flavor Universality in B → K ∗ℓ+ℓ− Decays at Belle , Phys. Rev. Lett. 126 (2021) 161801 [ 1904.02440]

work page arXiv 2021
[54]

LHCb collaboration, Test of lepton universality in b → sℓ+ℓ− decays, Phys. Rev. Lett. 131 (2023) 051803 [ 2212.09152]

work page arXiv 2023
[55]

LHCb collaboration, Measurement of lepton universality parameters in B+ → K +ℓ+ℓ− and B0 → K ∗0ℓ+ℓ− decays, Phys. Rev. D 108 (2023) 032002 [ 2212.09153]

work page arXiv 2023
[56]

Greljo, J

A. Greljo, J. Salko, A. Smolkoviˇ c and P. Stangl, Rare b decays meet high-mass Drell-Yan , JHEP 05 (2023) 087 [ 2212.10497]

work page arXiv 2023
[57]

Alguer´ o, A

M. Alguer´ o, A. Biswas, B. Capdevila, S. Descotes-Genon, J. Matias and M. Novoa-Brunet, To (b)e or not to (b)e: no electrons at LHCb , Eur. Phys. J. C 83 (2023) 648 [ 2304.07330]

work page arXiv 2023
[58]

Hurth, F

T. Hurth, F. Mahmoudi and S. Neshatpour, B anomalies in the post RK(∗) era, Phys. Rev. D 108 (2023) 115037 [ 2310.05585]

work page arXiv 2023
[59]

Datta, J

A. Datta, J. Kumar, S. Kumbhakar and D. London, Uniting Low-energy Semileptonic and Hadronic Anomalies within SMEFT , 2408.03380

work page arXiv
[60]

Explaining the $B \to K^\ast \mu^+ \mu^-$ data with scalar interactions

A. Datta, M. Duraisamy and D. Ghosh, Explaining the B → K ∗µ+µ− data with scalar interactions, Phys. Rev. D 89 (2014) 071501 [ 1310.1937]

work page internal anchor Pith review Pith/arXiv arXiv 2014
[61]

Simultaneous Explanation of the $R_K$ and $R(D^{(*)})$ Puzzles

B. Bhattacharya, A. Datta, D. London and S. Shivashankara, Simultaneous Explanation of the RK and R(D(∗)) Puzzles, Phys. Lett. B 742 (2015) 370 [ 1412.7164]

work page internal anchor Pith review Pith/arXiv arXiv 2015
[62]

Simultaneous Explanation of the $R_K$ and $R_{D^{(*)}}$ Puzzles: a Model Analysis

B. Bhattacharya, A. Datta, J.-P. Gu´ evin, D. London and R. Watanabe, Simultaneous Explanation of the RK and RD(∗) Puzzles: a Model Analysis , JHEP 01 (2017) 015 [1609.09078]. – 36 –

work page internal anchor Pith review Pith/arXiv arXiv 2017
[63]

Fedele, M

M. Fedele, M. Blanke, A. Crivellin, S. Iguro, U. Nierste, S. Simula et al., Discriminating B→D*ℓν form factors via polarization observables and asymmetries , Phys. Rev. D 108 (2023) 055037 [ 2305.15457]

work page arXiv 2023
[64]

Impact of polarization observables and $ B_c\to \tau \nu$ on new physics explanations of the $b\to c \tau \nu$ anomaly

M. Blanke, A. Crivellin, S. de Boer, T. Kitahara, M. Moscati, U. Nierste et al., Impact of polarization observables and Bc → τ ν on new physics explanations of the b → cτ ν anomaly, Phys. Rev. D 99 (2019) 075006 [ 1811.09603]

work page internal anchor Pith review Pith/arXiv arXiv 2019
[65]

Impact of polarization observables and Bc → τ ν on new physics explanations of the b → cτ ν anomaly

M. Blanke, A. Crivellin, T. Kitahara, M. Moscati, U. Nierste and I. Niˇ sandˇ zi´ c,Addendum to “Impact of polarization observables and Bc → τ ν on new physics explanations of the b → cτ ν anomaly”, 1905.08253

work page arXiv 1905
[66]

Bhattacharya, T.E

B. Bhattacharya, T.E. Browder, Q. Campagna, A. Datta, S. Dubey, L. Mukherjee et al., Implications for the ∆AFB anomaly in B ¯0→D*+ℓ-ν¯ using a new Monte Carlo event generator, Phys. Rev. D 107 (2023) 015011 [ 2206.11283]

work page arXiv 2023
[67]

Bhattacharya, A

B. Bhattacharya, A. Datta, S. Kamali and D. London, A measurable angular distribution for B → D∗τ −vτ decays, JHEP 07 (2020) 194 [ 2005.03032]

work page arXiv 2020
[68]

Iguro, T

S. Iguro, T. Kitahara and R. Watanabe, Global fit to b→cτ ν anomalies as of Spring 2024 , Phys. Rev. D 110 (2024) 075005 [ 2405.06062]

work page arXiv 2024
[69]

Murgui, A

C. Murgui, A. Pe˜ nuelas, M. Jung and A. Pich, Global fit to b → cτ ν transitions, JHEP 09 (2019) 103 [ 1904.09311]

work page arXiv 2019
[70]

Diagnosing New Physics in $b \to c \, \tau \, \nu_\tau$ decays in the light of the recent BaBar result

A. Datta, M. Duraisamy and D. Ghosh, Diagnosing New Physics in b → c τ ντ decays in the light of the recent BaBar result , Phys. Rev. D 86 (2012) 034027 [ 1206.3760]

work page internal anchor Pith review Pith/arXiv arXiv 2012
[71]

Korner and G.A

J.G. Korner and G.A. Schuler, Exclusive Semileptonic Heavy Meson Decays Including Lepton Mass Effects, Z. Phys. C 46 (1990) 93

work page 1990
[72]

Navas et al., Particle data group , Phys

S. Navas et al., Particle data group , Phys. Rev. D 110 (2024) 030001

work page 2024
[73]

K¨ all´ en,Elementary particle physics , Addison-Wesley, Reading, MA (1964)

G. K¨ all´ en,Elementary particle physics , Addison-Wesley, Reading, MA (1964)

work page 1964
[74]

X.-Q. Li, X. Xu, Y.-D. Yang and D.-H. Zheng, B− c → J/ψ (→ µ+µ−) τ − (→ π−ντ , ρ−ντ , ℓ−νℓντ) ντ decays with visible final-state kinematics, JHEP 05 (2023) 173 [ 2302.13743]

work page arXiv 2023
[75]

Ferlewicz, P

D. Ferlewicz, P. Urquijo and E. Waheed, Revisiting fits to B0 → D∗−ℓ+νℓ to measure |Vcb| with novel methods and preliminary LQCD data at nonzero recoil , Phys. Rev. D 103 (2021) 073005 [2008.09341]

work page arXiv 2021
[76]

Fermilab Lattice, MILC, Fermilab Lattice, MILC collaboration, Semileptonic form factors for B → D∗ℓν at nonzero recoil from 2 + 1-flavor lattice QCD: Fermilab Lattice and MILC Collaborations , Eur. Phys. J. C 82 (2022) 1141 [ 2105.14019]

work page arXiv 2022
[77]

JLQCD collaboration, B → D∗ℓνℓ semileptonic form factors from lattice QCD with M¨ obius domain-wall quarks , 2306.05657

work page arXiv
[78]

Huang, E

Z.-R. Huang, E. Kou, C.-D. L¨ u and R.-Y. Tang, Un-binned Angular Analysis of B → D∗ℓνℓ and the Right-handed Current , Phys. Rev. D 105 (2022) 013010 [ 2106.13855]

work page arXiv 2022
[79]

Kapoor, Z.-R

T. Kapoor, Z.-R. Huang and E. Kou, New physics search via angular distribution of B → D∗ℓνℓ decay in the light of the new lattice data , 2401.11636

work page arXiv
[80]

Belle collaboration, Measurement of the CKM matrix element |Vcb| from B0 → D∗−ℓ+νℓ at Belle, Phys. Rev. D 100 (2019) 052007 [ 1809.03290]. – 37 –

work page arXiv 2019
[81]

Harrison and C.T.H

J. Harrison and C.T.H. Davies, B → D∗ vector, axial-vector and tensor form factors for the full q2 range from lattice QCD , 2304.03137

work page arXiv
[82]

Particle Data Group collaboration, Review of Particle Physics , PTEP 2020 (2020) 083C01

work page 2020
[83]

LHCb collaboration, Measurement of the ratio of the B0 → D∗−τ +ντ and B0 → D∗−µ+νµ branching fractions using three-prong τ-lepton decays, Phys. Rev. Lett. 120 (2018) 171802 [1708.08856]

work page internal anchor Pith review Pith/arXiv arXiv 2018
[84]

Belle collaboration, Observation of B0 — > D*- tau+ nu(tau) decay at Belle , Phys. Rev. Lett. 99 (2007) 191807 [ 0706.4429]

work page arXiv 2007
[85]

CKMfitter Group collaboration, CP violation and the CKM matrix: Assessing the impact of the asymmetric B factories, Eur. Phys. J. C 41 (2005) 1 [ hep-ph/0406184]

work page internal anchor Pith review Pith/arXiv arXiv 2005
[86]

Lincei Sci

UTfit collaboration, New UTfit Analysis of the Unitarity Triangle in the Cabibbo-Kobayashi-Maskawa scheme, Rend. Lincei Sci. Fis. Nat. 34 (2023) 37 [ 2212.03894]

work page arXiv 2023
[87]

Penalva, E

N. Penalva, E. Hern´ andez and J. Nieves,The role of right-handed neutrinos in b → cτ(πντ , ρντ , µ¯νµντ)¯ντ from visible final-state kinematics , JHEP 10 (2021) 122 [2107.13406]

work page arXiv 2021
[88]

Bhattacharya, A

B. Bhattacharya, A. Datta, S. Kamali and D. London, CP Violation in ¯B0 → D∗+µ−¯νµ, JHEP 05 (2019) 191 [ 1903.02567]

work page arXiv 2019

Showing first 80 references.

[1] [1]

Explaining B->D\tau\nu, B->D*\tau\nu and B->\tau\nu in a 2HDM of type III

A. Crivellin, C. Greub and A. Kokulu, Explaining B → Dτ ν, B → D∗τ ν and B → τ ν in a 2HDM of type III , Phys. Rev. D 86 (2012) 054014 [ 1206.2634]

work page internal anchor Pith review Pith/arXiv arXiv 2012

[2] [2]

Sensitivity to charged scalars in $B\to D^{(*)}\tau\nu_\tau$ and $B\to\tau\nu_\tau$ decays

A. Celis, M. Jung, X.-Q. Li and A. Pich, Sensitivity to charged scalars in B → D(∗)τ ντ and B → τ ντ decays, JHEP 01 (2013) 054 [ 1210.8443]

work page internal anchor Pith review Pith/arXiv arXiv 2013

[3] [3]

A perturbed lepton-specific two-Higgs-doublet model facing experimental hints for physics beyond the Standard Model

A. Crivellin, J. Heeck and P. Stoffer, A perturbed lepton-specific two-Higgs-doublet model facing experimental hints for physics beyond the Standard Model , Phys. Rev. Lett. 116 (2016) 081801 [1507.07567]

work page internal anchor Pith review Pith/arXiv arXiv 2016

[4] [4]

Charged Higgs bosons from the 3-3-1 models and the $\mathcal{R}(D^{(*)})$ anomalies

M. Wei and Y. Chong-Xing, Charged Higgs bosons from the 3-3-1 models and the R(D(∗)) anomalies, Phys. Rev. D 95 (2017) 035040 [ 1702.01255]. – 33 –

work page internal anchor Pith review Pith/arXiv arXiv 2017

[5] [5]

Charged-Higgs on $R_{D^{(*)}}$, $\tau$ polarization, and FBA

C.-H. Chen and T. Nomura, Charged-Higgs on RD(∗), τ polarization, and FBA , Eur. Phys. J. C 77 (2017) 631 [ 1703.03646]

work page internal anchor Pith review Pith/arXiv arXiv 2017

[6] [6]

$B\to D^{(*)}\tau\nu_\tau$ in the 2HDM with an anomalous $\tau$ coupling

J.-P. Lee, B → D(∗)τ ντ in the 2HDM with an anomalous τ coupling, Phys. Rev. D 96 (2017) 055005 [1705.02465]

work page internal anchor Pith review Pith/arXiv arXiv 2017

[7] [7]

$R(D^{(*)})$ in a general two Higgs doublet model

S. Iguro and K. Tobe, R(D(∗)) in a general two Higgs doublet model , Nucl. Phys. B 925 (2017) 560 [ 1708.06176]

work page internal anchor Pith review Pith/arXiv arXiv 2017

[8] [8]

Beyond $\mathcal{R}(D^{(*)})$ with the general 2HDM-III for $b\to c\tau\nu$

R. Martinez, C.F. Sierra and G. Valencia, Beyond R(D(∗)) with the general type-III 2HDM for b → cτ ν, Phys. Rev. D 98 (2018) 115012 [ 1805.04098]

work page internal anchor Pith review Pith/arXiv arXiv 2018

[9] [9]

Towards a viable scalar interpretation of $R_{D^{(*)}}$

S. Fraser, C. Marzo, L. Marzola, M. Raidal and C. Spethmann, Towards a viable scalar interpretation of RD(∗), Phys. Rev. D 98 (2018) 035016 [ 1805.08189]

work page internal anchor Pith review Pith/arXiv arXiv 2018

[10] [10]

Cardozo, J.H

J. Cardozo, J.H. Mu˜ noz, N. Quintero and E. Rojas, Analysing the charged scalar boson contribution to the charged-current B meson anomalies, J. Phys. G 48 (2021) 035001 [2006.07751]

work page arXiv 2021

[11] [11]

Datta, D

A. Datta, D. Marfatia and L. Mukherjee, Hint of a new scalar interaction in LHCb data? , Eur. Phys. J. C 84 (2024) 556 [ 2305.00614]

work page arXiv 2024

[12] [12]

It's all right(-handed neutrinos): a new $W'$ model for the $R_{D^{(*)}}$ anomaly

P. Asadi, M.R. Buckley and D. Shih, IIt’s all right(-handed neutrinos): a new W ′ model for the RD(∗) anomaly, JHEP 09 (2018) 010 [ 1804.04135]

work page internal anchor Pith review Pith/arXiv arXiv 2018

[13] [13]

$R(D^{(*)})$ from $W'$ and right-handed neutrinos

A. Greljo, D.J. Robinson, B. Shakya and J. Zupan, R(D(∗))f romW ′ and right-handed neutrinos, JHEP 09 (2018) 169 [ 1804.04642]

work page internal anchor Pith review Pith/arXiv arXiv 2018

[14] [14]

Right-handed Neutrinos and $R(D^{(*)})$

D.J. Robinson, B. Shakya and J. Zupan, Right-handed neutrinos and R(D (∗)), JHEP 02 (2019) 119 [ 1807.04753]

work page internal anchor Pith review Pith/arXiv arXiv 2019

[15] [15]

K.S. Babu, B. Dutta and R.N. Mohapatra, A theory of R(D ∗, D) anomaly with right-handed currents, JHEP 01 (2019) 168 [ 1811.04496]

work page internal anchor Pith review Pith/arXiv arXiv 2019

[16] [16]

Mandal, C

R. Mandal, C. Murgui, A. Pe˜ nuelas and A. Pich, The role of right-handed neutrinos in b → cτ ¯ν anomalies, JHEP 08 (2020) 022 [ 2004.06726]

work page arXiv 2020

[17] [17]

Gomez, N

J.D. Gomez, N. Quintero and E. Rojas, Charged current b → cτ ¯ντ anomalies in a general W ′ boson scenario, Phys. Rev. D 100 (2019) 093003 [ 1907.08357]

work page arXiv 2019

[18] [18]

Testing leptoquark models in $\bar B \to D^{(*)} \tau \bar\nu$

Y. Sakaki, M. Tanaka, A. Tayduganov and R. Watanabe, Testing leptoquark models in ¯B → D(∗)τ ¯ν , Phys. Rev. D 88 (2013) 094012 [ 1309.0301]

work page internal anchor Pith review Pith/arXiv arXiv 2013

[19] [19]

Revisiting the one leptoquark solution to the $R(D^{(\ast)})$ anomalies and its phenomenological implications

X.-Q. Li, Y.-D. Yang and X. Zhang, Revisiting the one leptoquark solution to the R(D(∗)) anomalies and its phenomenological implications , JHEP 08 (2016) 054 [ 1605.09308]

work page internal anchor Pith review Pith/arXiv arXiv 2016

[20] [20]

On the Minimal Flavor Violating Leptoquark Explanation of the $R_{D^{(*)}}$ Anomaly

S. Bansal, R.M. Capdevilla and C. Kolda, Constraining the minimal flavor violating leptoquark explanation of the RD(∗) anomaly, Phys. Rev. D 99 (2019) 035047 [ 1810.11588]

work page internal anchor Pith review Pith/arXiv arXiv 2019

[21] [21]

Aydemir, T

U. Aydemir, T. Mandal and S. Mitra, Addressing the RD(∗) anomalies with an S1 leptoquark from SO(10) grand unification, Phys. Rev. D 101 (2020) 015011 [ 1902.08108]

work page arXiv 2020

[22] [22]

Cheung, Z.-R

K. Cheung, Z.-R. Huang, H.-D. Li, C.-D. L¨ u, Y.-N. Mao and R.-Y. Tang, Revisit to the b → cτ ν transition: In and beyond the SM , Nucl. Phys. B 965 (2021) 115354 [ 2002.07272]

work page arXiv 2021

[23] [23]

Iguro, T

S. Iguro, T. Kitahara and R. Watanabe, Global fit to b → cτ ν anomalies 2022 mid-autumn , 2210.10751

work page arXiv 2022

[24] [30]

Belle II collaboration, Recent Belle II results on semileptonic ! decays and tests of lepton-flavor universality , 31st International Symposium on Lepton Photon Interactions at High Energies (2023)

work page 2023

[25] [33]

HFLA Vcollaboration, Averages of b-hadron, c-hadron, and τ-lepton properties as of 2021 , Phys. Rev. D 107 (2023) 052008 [ 2206.07501]

work page arXiv 2021

[26] [34]

BaBar collaboration, Evidence for an excess of ¯B → D(∗)τ −¯ντ decays, Phys. Rev. Lett. 109 (2012) 101802 [ 1205.5442]

work page internal anchor Pith review Pith/arXiv arXiv 2012

[27] [35]

BaBar collaboration, Measurement of an Excess of ¯B → D(∗)τ −¯ντ Decays and Implications for Charged Higgs Bosons , Phys. Rev. D 88 (2013) 072012 [ 1303.0571]

work page internal anchor Pith review Pith/arXiv arXiv 2013

[28] [36]

Belle collaboration, Measurement of the branching ratio of ¯B → D(∗)τ −¯ντ relative to ¯B → D(∗)ℓ−¯νℓ decays with hadronic tagging at Belle , Phys. Rev. D 92 (2015) 072014 [1507.03233]

work page internal anchor Pith review Pith/arXiv arXiv 2015

[29] [37]

Belle collaboration, Measurement of the τ lepton polarization and R(D∗) in the decay ¯B → D∗τ −¯ντ, Phys. Rev. Lett. 118 (2017) 211801 [ 1612.00529]

work page internal anchor Pith review Pith/arXiv arXiv 2017

[30] [38]

Belle collaboration, Measurement of the τ lepton polarization and R(D∗) in the decay ¯B → D∗τ −¯ντ with one-prong hadronic τ decays at Belle , Phys. Rev. D 97 (2018) 012004 [1709.00129]

work page internal anchor Pith review Pith/arXiv arXiv 2018

[31] [39]

Belle collaboration, Measurement of R(D) and R(D∗) with a semileptonic tagging method , Phys. Rev. Lett. 124 (2020) 161803 [ 1910.05864]

work page arXiv 2020

[32] [40]

Belle-II collaboration, A test of lepton flavor universality with a measurement of R(D∗) using hadronic B tagging at the Belle II experiment , 2401.02840

work page arXiv

[33] [41]

LHCb collaboration, Measurement of the ratios of branching fractions R(D∗) and R(D0), Phys. Rev. Lett. 131 (2023) 111802 [ 2302.02886]

work page arXiv 2023

[34] [42]

LHCb collaboration, Test of lepton flavor universality using B0 →D*-τ+ντ decays with hadronic τ channels, Phys. Rev. D 108 (2023) 012018 [ 2305.01463]. – 35 –

work page arXiv 2023

[35] [43]

LHCb Collaboration, B → clν decays at LHCb, in XXII International Conference on Heavy Quarks and Leptons , (Grenoble, France), 2023

work page 2023

[36] [44]

LHCb collaboration, Test of lepton universality using B+ → K +ℓ+ℓ− decays, Phys. Rev. Lett. 113 (2014) 151601 [ 1406.6482]

work page internal anchor Pith review Pith/arXiv arXiv 2014

[37] [45]

LHCb collaboration, Test of lepton universality with B0 → K ∗0ℓ+ℓ− decays, JHEP 08 (2017) 055 [ 1705.05802]

work page internal anchor Pith review Pith/arXiv arXiv 2017

[38] [46]

LHCb collaboration, Search for lepton-universality violation in B+ → K +ℓ+ℓ− decays, Phys. Rev. Lett. 122 (2019) 191801 [ 1903.09252]

work page internal anchor Pith review Pith/arXiv arXiv 2019

[39] [47]

LHCb collaboration, Test of lepton universality with Λ0 b → pK −ℓ+ℓ− decays, JHEP 05 (2020) 040 [ 1912.08139]

work page arXiv 2020

[40] [48]

18 (2022) 277 [ 2103.11769]

LHCb collaboration, Test of lepton universality in beauty-quark decays , Nature Phys. 18 (2022) 277 [ 2103.11769]

work page arXiv 2022

[41] [49]

LHCb collaboration, Tests of lepton universality using B0 → K 0 Sℓ+ℓ− and B+ → K ∗+ℓ+ℓ− decays, Phys. Rev. Lett. 128 (2022) 191802 [ 2110.09501]

work page arXiv 2022

[42] [50]

Belle collaboration, Lepton-Flavor-Dependent Angular Analysis of B → K ∗ℓ+ℓ−, Phys. Rev. Lett. 118 (2017) 111801 [ 1612.05014]

work page internal anchor Pith review Pith/arXiv arXiv 2017

[43] [51]

BaBar collaboration, Measurement of Branching Fractions and Rate Asymmetries in the Rare Decays B → K (∗)l+l−, Phys. Rev. D 86 (2012) 032012 [ 1204.3933]

work page internal anchor Pith review Pith/arXiv arXiv 2012

[44] [52]

BELLE collaboration, Test of lepton flavor universality and search for lepton flavor violation in B → Kℓℓ decays, JHEP 03 (2021) 105 [ 1908.01848]

work page arXiv 2021

[45] [53]

Belle collaboration, Test of Lepton-Flavor Universality in B → K ∗ℓ+ℓ− Decays at Belle , Phys. Rev. Lett. 126 (2021) 161801 [ 1904.02440]

work page arXiv 2021

[46] [54]

LHCb collaboration, Test of lepton universality in b → sℓ+ℓ− decays, Phys. Rev. Lett. 131 (2023) 051803 [ 2212.09152]

work page arXiv 2023

[47] [55]

LHCb collaboration, Measurement of lepton universality parameters in B+ → K +ℓ+ℓ− and B0 → K ∗0ℓ+ℓ− decays, Phys. Rev. D 108 (2023) 032002 [ 2212.09153]

work page arXiv 2023

[48] [56]

Greljo, J

A. Greljo, J. Salko, A. Smolkoviˇ c and P. Stangl, Rare b decays meet high-mass Drell-Yan , JHEP 05 (2023) 087 [ 2212.10497]

work page arXiv 2023

[49] [57]

Alguer´ o, A

M. Alguer´ o, A. Biswas, B. Capdevila, S. Descotes-Genon, J. Matias and M. Novoa-Brunet, To (b)e or not to (b)e: no electrons at LHCb , Eur. Phys. J. C 83 (2023) 648 [ 2304.07330]

work page arXiv 2023

[50] [58]

Hurth, F

T. Hurth, F. Mahmoudi and S. Neshatpour, B anomalies in the post RK(∗) era, Phys. Rev. D 108 (2023) 115037 [ 2310.05585]

work page arXiv 2023

[51] [59]

Datta, J

A. Datta, J. Kumar, S. Kumbhakar and D. London, Uniting Low-energy Semileptonic and Hadronic Anomalies within SMEFT , 2408.03380

work page arXiv

[52] [60]

Explaining the $B \to K^\ast \mu^+ \mu^-$ data with scalar interactions

A. Datta, M. Duraisamy and D. Ghosh, Explaining the B → K ∗µ+µ− data with scalar interactions, Phys. Rev. D 89 (2014) 071501 [ 1310.1937]

work page internal anchor Pith review Pith/arXiv arXiv 2014

[53] [61]

Simultaneous Explanation of the $R_K$ and $R(D^{(*)})$ Puzzles

B. Bhattacharya, A. Datta, D. London and S. Shivashankara, Simultaneous Explanation of the RK and R(D(∗)) Puzzles, Phys. Lett. B 742 (2015) 370 [ 1412.7164]

work page internal anchor Pith review Pith/arXiv arXiv 2015

[54] [62]

Simultaneous Explanation of the $R_K$ and $R_{D^{(*)}}$ Puzzles: a Model Analysis

B. Bhattacharya, A. Datta, J.-P. Gu´ evin, D. London and R. Watanabe, Simultaneous Explanation of the RK and RD(∗) Puzzles: a Model Analysis , JHEP 01 (2017) 015 [1609.09078]. – 36 –

work page internal anchor Pith review Pith/arXiv arXiv 2017

[55] [63]

Fedele, M

M. Fedele, M. Blanke, A. Crivellin, S. Iguro, U. Nierste, S. Simula et al., Discriminating B→D*ℓν form factors via polarization observables and asymmetries , Phys. Rev. D 108 (2023) 055037 [ 2305.15457]

work page arXiv 2023

[56] [64]

Impact of polarization observables and $ B_c\to \tau \nu$ on new physics explanations of the $b\to c \tau \nu$ anomaly

M. Blanke, A. Crivellin, S. de Boer, T. Kitahara, M. Moscati, U. Nierste et al., Impact of polarization observables and Bc → τ ν on new physics explanations of the b → cτ ν anomaly, Phys. Rev. D 99 (2019) 075006 [ 1811.09603]

work page internal anchor Pith review Pith/arXiv arXiv 2019

[57] [65]

Impact of polarization observables and Bc → τ ν on new physics explanations of the b → cτ ν anomaly

M. Blanke, A. Crivellin, T. Kitahara, M. Moscati, U. Nierste and I. Niˇ sandˇ zi´ c,Addendum to “Impact of polarization observables and Bc → τ ν on new physics explanations of the b → cτ ν anomaly”, 1905.08253

work page arXiv 1905

[58] [66]

Bhattacharya, T.E

B. Bhattacharya, T.E. Browder, Q. Campagna, A. Datta, S. Dubey, L. Mukherjee et al., Implications for the ∆AFB anomaly in B ¯0→D*+ℓ-ν¯ using a new Monte Carlo event generator, Phys. Rev. D 107 (2023) 015011 [ 2206.11283]

work page arXiv 2023

[59] [67]

Bhattacharya, A

B. Bhattacharya, A. Datta, S. Kamali and D. London, A measurable angular distribution for B → D∗τ −vτ decays, JHEP 07 (2020) 194 [ 2005.03032]

work page arXiv 2020

[60] [68]

Iguro, T

S. Iguro, T. Kitahara and R. Watanabe, Global fit to b→cτ ν anomalies as of Spring 2024 , Phys. Rev. D 110 (2024) 075005 [ 2405.06062]

work page arXiv 2024

[61] [69]

Murgui, A

C. Murgui, A. Pe˜ nuelas, M. Jung and A. Pich, Global fit to b → cτ ν transitions, JHEP 09 (2019) 103 [ 1904.09311]

work page arXiv 2019

[62] [70]

Diagnosing New Physics in $b \to c \, \tau \, \nu_\tau$ decays in the light of the recent BaBar result

A. Datta, M. Duraisamy and D. Ghosh, Diagnosing New Physics in b → c τ ντ decays in the light of the recent BaBar result , Phys. Rev. D 86 (2012) 034027 [ 1206.3760]

work page internal anchor Pith review Pith/arXiv arXiv 2012

[63] [71]

Korner and G.A

J.G. Korner and G.A. Schuler, Exclusive Semileptonic Heavy Meson Decays Including Lepton Mass Effects, Z. Phys. C 46 (1990) 93

work page 1990

[64] [72]

Navas et al., Particle data group , Phys

S. Navas et al., Particle data group , Phys. Rev. D 110 (2024) 030001

work page 2024

[65] [73]

K¨ all´ en,Elementary particle physics , Addison-Wesley, Reading, MA (1964)

G. K¨ all´ en,Elementary particle physics , Addison-Wesley, Reading, MA (1964)

work page 1964

[66] [74]

X.-Q. Li, X. Xu, Y.-D. Yang and D.-H. Zheng, B− c → J/ψ (→ µ+µ−) τ − (→ π−ντ , ρ−ντ , ℓ−νℓντ) ντ decays with visible final-state kinematics, JHEP 05 (2023) 173 [ 2302.13743]

work page arXiv 2023

[67] [75]

Ferlewicz, P

D. Ferlewicz, P. Urquijo and E. Waheed, Revisiting fits to B0 → D∗−ℓ+νℓ to measure |Vcb| with novel methods and preliminary LQCD data at nonzero recoil , Phys. Rev. D 103 (2021) 073005 [2008.09341]

work page arXiv 2021

[68] [76]

Fermilab Lattice, MILC, Fermilab Lattice, MILC collaboration, Semileptonic form factors for B → D∗ℓν at nonzero recoil from 2 + 1-flavor lattice QCD: Fermilab Lattice and MILC Collaborations , Eur. Phys. J. C 82 (2022) 1141 [ 2105.14019]

work page arXiv 2022

[69] [77]

JLQCD collaboration, B → D∗ℓνℓ semileptonic form factors from lattice QCD with M¨ obius domain-wall quarks , 2306.05657

work page arXiv

[70] [78]

Huang, E

Z.-R. Huang, E. Kou, C.-D. L¨ u and R.-Y. Tang, Un-binned Angular Analysis of B → D∗ℓνℓ and the Right-handed Current , Phys. Rev. D 105 (2022) 013010 [ 2106.13855]

work page arXiv 2022

[71] [79]

Kapoor, Z.-R

T. Kapoor, Z.-R. Huang and E. Kou, New physics search via angular distribution of B → D∗ℓνℓ decay in the light of the new lattice data , 2401.11636

work page arXiv

[72] [80]

Belle collaboration, Measurement of the CKM matrix element |Vcb| from B0 → D∗−ℓ+νℓ at Belle, Phys. Rev. D 100 (2019) 052007 [ 1809.03290]. – 37 –

work page arXiv 2019

[73] [81]

Harrison and C.T.H

J. Harrison and C.T.H. Davies, B → D∗ vector, axial-vector and tensor form factors for the full q2 range from lattice QCD , 2304.03137

work page arXiv

[74] [82]

Particle Data Group collaboration, Review of Particle Physics , PTEP 2020 (2020) 083C01

work page 2020

[75] [83]

LHCb collaboration, Measurement of the ratio of the B0 → D∗−τ +ντ and B0 → D∗−µ+νµ branching fractions using three-prong τ-lepton decays, Phys. Rev. Lett. 120 (2018) 171802 [1708.08856]

work page internal anchor Pith review Pith/arXiv arXiv 2018

[76] [84]

Belle collaboration, Observation of B0 — > D*- tau+ nu(tau) decay at Belle , Phys. Rev. Lett. 99 (2007) 191807 [ 0706.4429]

work page arXiv 2007

[77] [85]

CKMfitter Group collaboration, CP violation and the CKM matrix: Assessing the impact of the asymmetric B factories, Eur. Phys. J. C 41 (2005) 1 [ hep-ph/0406184]

work page internal anchor Pith review Pith/arXiv arXiv 2005

[78] [86]

Lincei Sci

UTfit collaboration, New UTfit Analysis of the Unitarity Triangle in the Cabibbo-Kobayashi-Maskawa scheme, Rend. Lincei Sci. Fis. Nat. 34 (2023) 37 [ 2212.03894]

work page arXiv 2023

[79] [87]

Penalva, E

N. Penalva, E. Hern´ andez and J. Nieves,The role of right-handed neutrinos in b → cτ(πντ , ρντ , µ¯νµντ)¯ντ from visible final-state kinematics , JHEP 10 (2021) 122 [2107.13406]

work page arXiv 2021

[80] [88]

Bhattacharya, A

B. Bhattacharya, A. Datta, S. Kamali and D. London, CP Violation in ¯B0 → D∗+µ−¯νµ, JHEP 05 (2019) 191 [ 1903.02567]

work page arXiv 2019