pith. machine review for the scientific record. sign in

arxiv: 2605.13977 · v1 · submitted 2026-05-13 · ✦ hep-ph

Recognition: 2 theorem links

· Lean Theorem

A Phenomenological Model of Mesons for Charged Current Weak Decays

Authors on Pith no claims yet

Pith reviewed 2026-05-15 04:58 UTC · model grok-4.3

classification ✦ hep-ph
keywords phenomenological modelcharged-current decaysheavy-light mesonschiral symmetryheavy quark symmetrynon-factorizable effectsB meson decaysCKM spurions
0
0 comments X

The pith

A symmetry-based phenomenological model describes charged-current weak decays of heavy-light mesons by organizing dimension-six operators and capturing non-factorizable effects.

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

The paper proposes a model that merges chiral symmetry for the light sector with heavy-quark flavor symmetry to treat charged-current weak decays of heavy-light mesons. Cabibbo-Kobayashi-Maskawa elements are introduced as spurions to account for explicit breaking. Leading-order current-current operators at dimension six are classified, and the framework reproduces heavy-quark scaling relations for decay constants and form factors as expected from heavy quark effective theory. Hadronic transition operators are split into double-trace and single-trace types, with single traces often incorporating higher-order corrections and non-factorizable effects. The model is applied to decays like B to K plus eta_c, eta prime, or eta, showing how it includes mixing, heavy quark condensates, and non-perturbative effects beyond simple W exchange.

Core claim

The central discovery is that a hadron-level description based on combined chiral and heavy-quark symmetries, with CKM spurions, systematically organizes the relevant operators for fully-leptonic, semi-leptonic, and hadronic charged-current decays, reproducing known scaling relations and providing a way to include non-factorizable contributions through single-trace operators.

What carries the argument

The classification of dimension-six current-current operators into single-trace and double-trace structures under the combined symmetries, with CKM matrix elements as spurions encoding symmetry breaking.

Load-bearing premise

The assumption that charged-current interactions at dimension six with single-trace operators suffice to capture all mixing, heavy-quark condensates, and non-factorizable effects in the B decays without additional parameters.

What would settle it

Observation of decay rates or form factors in B to K plus charmonium or light pseudoscalars that violate the predicted isospin sum rules or fail to match the reproduced heavy-quark scaling after accounting for the included effects.

read the original abstract

We propose a phenomenological model of pseudo scalar mesons to describe charged-current weak decays of heavy-light mesons. The approach combines chiral symmetry in the light sector with heavy-quark flavor symmetry, while Cabibbo--Kobayashi--Maskawa (CKM) matrix elements are incorporated as spurions that encode explicit symmetry breaking. Restricting to charged-current interactions, we systematically organize the leading-order current-current operators at dimension six and identify the relevant operator structures governing fully-leptonic, semi-leptonic, and hadronic decays. This framework reproduces known heavy-quark scaling relations for decay constants and form factors in agreement with expectations from heavy quark effective theory, providing nontrivial consistency checks. Operators responsible for hadronic transitions are further classified into double-trace operators and single-trace operators. These single traces, interestingly, often capture several higher order corrections, non-factorizable effects etc. We check for consistencies for both single-trace and double-trace operators demanding that the resulting amplitudes should satisfy established isospin sum rules. As an application, we analyze the decay modes $B\to K + \eta_{c} / \eta^{\prime}/ \eta$. We find that these processes receive contributions from a host of non-trivial processes such as mixing between various states, non-perturbative QCD parameters such as the heavy quark condensates, non-factorizable effects, etc, apart from the straightforward perturbative $W$ exchange diagrams in the quark picture. Our set-up neatly captures all of these effects. The phenomenological model we provide here is a symmetry-guided, hadron-level description of charged-current processes and offers a complementary perspective to conventional quark-level approaches, with a natural avenue for incorporating non-factorizable effects.

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.

Referee Report

3 major / 1 minor

Summary. The manuscript proposes a phenomenological model for charged-current weak decays of heavy-light pseudo-scalar mesons that combines chiral symmetry in the light sector with heavy-quark flavor symmetry, treating CKM matrix elements as spurions. It organizes leading dimension-six current-current operators into double-trace and single-trace structures, asserts reproduction of heavy-quark effective theory scaling relations for decay constants and form factors as consistency checks, verifies that amplitudes satisfy isospin sum rules, and applies the framework to B → K + η_c/η'/η decays, claiming that single-trace operators systematically capture mixing, heavy-quark condensates, and non-factorizable effects.

Significance. If the single-trace operator classification can be shown to incorporate non-perturbative effects without additional parameters or higher-dimensional operators, the symmetry-guided approach would provide a useful complementary perspective to quark-level calculations for analyzing B-meson decays. The emphasis on isospin consistency and operator classification is a constructive element, though the absence of explicit derivations, numerical results, or data comparisons limits the immediate significance of the claims.

major comments (3)
  1. [Abstract] Abstract: the statement that the framework reproduces known heavy-quark scaling relations for decay constants and form factors is presented as a nontrivial consistency check, yet no explicit derivations from the operator basis, numerical values, error estimates, or direct comparisons to HQET expectations are supplied.
  2. [Application section] Application to B decays: the central assertion that single-trace dim-6 operators capture higher-order corrections, non-factorizable effects, and heavy-quark condensates rests on an unproven completeness assumption at leading order; no operator matching to QCD, power-counting argument, or numerical fit is given to demonstrate that the listed amplitudes satisfy isospin sum rules without extra parameters.
  3. [Consistency checks] Consistency checks: while isospin sum rules are invoked to validate both single- and double-trace operators, the manuscript provides no concrete amplitude expressions or coefficient values that would allow verification of the claimed reproduction of data or scaling relations.
minor comments (1)
  1. The distinction between single-trace and double-trace operator structures would benefit from explicit examples or a table listing the relevant operators for the B decays considered.

Simulated Author's Rebuttal

3 responses · 1 unresolved

We thank the referee for the careful reading and constructive feedback on our manuscript. We address each major comment below and will revise the paper to provide the requested explicit derivations, expressions, and arguments while clarifying the phenomenological nature of the approach.

read point-by-point responses
  1. Referee: [Abstract] Abstract: the statement that the framework reproduces known heavy-quark scaling relations for decay constants and form factors is presented as a nontrivial consistency check, yet no explicit derivations from the operator basis, numerical values, error estimates, or direct comparisons to HQET expectations are supplied.

    Authors: We agree that the current version lacks explicit derivations to support the consistency claim. In the revised manuscript we will add a dedicated subsection deriving the heavy-quark scaling relations for decay constants and form factors directly from the leading dimension-six operator basis. This will include the explicit functional dependence on the heavy-quark mass, the resulting scaling laws, and side-by-side comparisons with the corresponding HQET expressions. Uncertainties will be discussed in terms of the chiral and heavy-quark symmetry-breaking parameters. These additions will make the nontrivial consistency check fully verifiable. revision: yes

  2. Referee: [Application section] Application to B decays: the central assertion that single-trace dim-6 operators capture higher-order corrections, non-factorizable effects, and heavy-quark condensates rests on an unproven completeness assumption at leading order; no operator matching to QCD, power-counting argument, or numerical fit is given to demonstrate that the listed amplitudes satisfy isospin sum rules without extra parameters.

    Authors: The framework is explicitly phenomenological and symmetry-guided rather than obtained via QCD matching, so we do not claim a rigorous proof of completeness. We will nevertheless add a power-counting discussion in the revised text that justifies the leading-order truncation in the combined chiral and heavy-quark expansions and shows why single-trace operators are expected to encode the listed higher-order and non-factorizable effects within this approximation. Explicit amplitude expressions for the B → K + η_c/η′/η channels will also be supplied to demonstrate that the isospin sum rules are satisfied by construction from the operator structures, without introducing extra parameters. Numerical fits to data remain outside the present scope. revision: partial

  3. Referee: [Consistency checks] Consistency checks: while isospin sum rules are invoked to validate both single- and double-trace operators, the manuscript provides no concrete amplitude expressions or coefficient values that would allow verification of the claimed reproduction of data or scaling relations.

    Authors: We will expand the consistency-checks section to include the concrete amplitude expressions and the numerical coefficient values (in terms of the symmetry-breaking parameters) for both single- and double-trace operators. With these expressions the isospin sum rules can be verified directly. The explicit derivations of the scaling relations (addressed in the first point) will simultaneously supply the missing verification for those relations. The manuscript does not attempt to reproduce specific experimental data points; its focus is the symmetry structure itself. revision: yes

standing simulated objections not resolved
  • Providing numerical results or direct comparisons to experimental data, which lies outside the scope of this symmetry-based phenomenological model.

Circularity Check

1 steps flagged

Single-trace operators defined to capture non-factorizable effects by construction

specific steps
  1. self definitional [Abstract]
    "Operators responsible for hadronic transitions are further classified into double-trace operators and single-trace operators. These single traces, interestingly, often capture several higher order corrections, non-factorizable effects etc."

    The paper introduces the single-trace vs double-trace split and immediately states that the single-trace operators capture the higher-order and non-factorizable effects the model is intended to describe. The subsequent application to B decays then attributes mixing, condensates, and non-factorizable contributions to these operators, making the attribution tautological with the classification rather than derived from explicit operator matching or QCD power counting.

full rationale

The paper organizes operators using standard chiral and heavy-quark symmetries plus spurions, which is self-contained. However, the central classification step asserts without derivation that single-trace structures encode higher-order corrections and non-factorizable effects, then applies them to explain B-decay amplitudes and mixing. This reduces the explanatory claim to the definition itself rather than an independent matching or power-counting result. The reproduction of HQET scaling relations is a consistency check within the same symmetries and does not add new content. No self-citation chain or fitted-parameter renaming is present, so circularity is partial rather than total.

Axiom & Free-Parameter Ledger

1 free parameters · 3 axioms · 1 invented entities

The central construction rests on established domain symmetries plus an ad-hoc spurion treatment and a new operator classification whose coefficients are not independently fixed.

free parameters (1)
  • operator coefficients
    Coefficients multiplying the dimension-six current-current operators are expected to be determined phenomenologically or fitted to data.
axioms (3)
  • domain assumption Chiral symmetry holds in the light-quark sector
    Invoked to organize light-meson interactions.
  • domain assumption Heavy-quark flavor symmetry applies to the heavy quark
    Used to derive scaling relations for decay constants and form factors.
  • ad hoc to paper CKM matrix elements act as spurions encoding explicit breaking
    Introduced to incorporate flavor mixing while preserving the symmetry framework.
invented entities (1)
  • single-trace operators no independent evidence
    purpose: To capture higher-order corrections, non-factorizable effects, and mixing contributions
    Newly classified operator structures whose role is defined within the model.

pith-pipeline@v0.9.0 · 5615 in / 1715 out tokens · 39964 ms · 2026-05-15T04:58:43.204494+00:00 · methodology

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Lean theorems connected to this paper

Citations machine-checked in the Pith Canon. Every link opens the source theorem in the public Lean library.

What do these tags mean?
matches
The paper's claim is directly supported by a theorem in the formal canon.
supports
The theorem supports part of the paper's argument, but the paper may add assumptions or extra steps.
extends
The paper goes beyond the formal theorem; the theorem is a base layer rather than the whole result.
uses
The paper appears to rely on the theorem as machinery.
contradicts
The paper's claim conflicts with a theorem or certificate in the canon.
unclear
Pith found a possible connection, but the passage is too broad, indirect, or ambiguous to say the theorem truly supports the claim.

Reference graph

Works this paper leans on

137 extracted references · 137 canonical work pages · 81 internal anchors

  1. [1]

    Lucha, F

    W. Lucha, F. F. Schoberl and D. Gromes, Bound states of quarks , Phys. Rept. 200 (1991) 127–240

  2. [2]

    G. S. Bali, QCD forces and heavy quark bound states , Phys. Rept. 343 (2001) 1–136, [hep-ph/0001312]

  3. [3]

    Quark Confinement: The Hard Problem of Hadron Physics

    R. Alkofer and J. Greensite, Quark Confinement: The Hard Problem of Hadron Physics , J. Phys. G 34 (2007) S3, [ hep-ph/0610365]

  4. [4]

    QCD and strongly coupled gauge theories: challenges and perspectives

    N. Brambilla et al., QCD and Strongly Coupled Gauge Theories: Challenges and Perspectives, Eur. Phys. J. C 74 (2014) 2981, [ 1404.3723]

  5. [5]

    Aoki et al., FLAG review 2024, Phys

    Flavour Lattice A veraging Group (FLAG) collaboration, Y. Aoki et al., FLAG review 2024, Phys. Rev. D 113 (2026) 014508, [ 2411.04268]

  6. [6]

    Review of lattice results concerning low-energy particle physics

    S. Aoki et al., Review of lattice results concerning low-energy particle physics , Eur. Phys. J. C 77 (2017) 112, [ 1607.00299]. – 29 –

  7. [7]

    J. T. Tsang and M. Della Morte, B-physics from lattice gauge theory , Eur. Phys. J. ST 233 (2024) 253–270, [ 2310.02705]

  8. [8]

    USQCD collaboration, A. S. Kronfeld et al., Lattice QCD and Particle Physics , 2207.07641

  9. [9]

    Chiral Perturbation Theory

    A. Pich, Chiral perturbation theory, Rept. Prog. Phys. 58 (1995) 563–610, [hep-ph/9502366]

  10. [10]

    Chiral perturbation theory

    G. Ecker, Chiral perturbation theory, Prog. Part. Nucl. Phys. 35 (1995) 1–80, [hep-ph/9501357]

  11. [11]

    Introduction to Chiral Perturbation Theory

    S. Scherer, Introduction to chiral perturbation theory, Adv. Nucl. Phys. 27 (2003) 277, [hep-ph/0210398]

  12. [12]

    H. D. Politzer and M. B. Wise, Effective Field Theory Approach to Processes Involving Both Light and Heavy Fields , Phys. Lett. B 208 (1988) 504–507

  13. [13]

    Eichten and B

    E. Eichten and B. R. Hill, An Effective Field Theory for the Calculation of Matrix Elements Involving Heavy Quarks , Phys. Lett. B 234 (1990) 511–516

  14. [14]

    Georgi, An Effective Field Theory for Heavy Quarks at Low-energies , Phys

    H. Georgi, An Effective Field Theory for Heavy Quarks at Low-energies , Phys. Lett. B 240 (1990) 447–450

  15. [15]

    Grinstein, The Static Quark Effective Theory , Nucl

    B. Grinstein, The Static Quark Effective Theory , Nucl. Phys. B 339 (1990) 253–268

  16. [16]

    Heavy Quark Symmetry

    M. Neubert, Heavy quark symmetry , Phys. Rept. 245 (1994) 259–396, [ hep-ph/9306320]

  17. [17]

    I. I. Y. Bigi, M. A. Shifman and N. Uraltsev, Aspects of heavy quark theory , Ann. Rev. Nucl. Part. Sci. 47 (1997) 591–661, [ hep-ph/9703290]

  18. [18]

    A. V. Manohar and M. B. Wise, Heavy quark physics, vol. 10. 2000, 10.1017/9781009402125

  19. [19]

    Mannel, Effective Field Theories in Flavor Physics , Springer Tracts Mod

    T. Mannel, Effective Field Theories in Flavor Physics , Springer Tracts Mod. Phys. 203 (2004) 1–175

  20. [20]

    Weak Decays Beyond Leading Logarithms

    G. Buchalla, A. J. Buras and M. E. Lautenbacher, Weak Decays beyond Leading Logarithms, Rev. Mod. Phys. 68 (1996) 1125–1144, [ hep-ph/9512380]

  21. [21]

    A. J. Buras, Weak Hamiltonian, CP violation and rare decays , in Les Houches Summer School in Theoretical Physics, Session 68: Probing the Standard Model of Particle Interactions, pp. 281–539, 6, 1998. hep-ph/9806471

  22. [22]

    Isgur, D

    N. Isgur, D. Scora, B. Grinstein and M. B. Wise, Semileptonic B and D Decays in the Quark Model, Phys. Rev. D 39 (1989) 799–818

  23. [23]

    Isgur and M

    N. Isgur and M. B. Wise, Weak Decays of Heavy Mesons in the Static Quark Approximation, Phys. Lett. B 232 (1989) 113–117

  24. [24]

    Isgur and M

    N. Isgur and M. B. Wise, Relationship Between Form-factors in Semileptonic ¯B and D Decays and Exclusive Rare ¯B Meson Decays, Phys. Rev. D 42 (1990) 2388–2391

  25. [25]

    V. L. Chernyak and A. R. Zhitnitsky, Asymptotic Behavior of Exclusive Processes in QCD , Phys. Rept. 112 (1984) 173

  26. [26]

    Wirbel, B

    M. Wirbel, B. Stech and M. Bauer, Exclusive Semileptonic Decays of Heavy Mesons , Z. Phys. C 29 (1985) 637

  27. [27]

    Bauer, B

    M. Bauer, B. Stech and M. Wirbel, Exclusive Nonleptonic Decays of D, D(s), and B Mesons, Z. Phys. C 34 (1987) 103. – 30 –

  28. [28]

    Stoler, Baryon form-factors at high Q**2 and the transition to perturbative QCD , Phys

    P. Stoler, Baryon form-factors at high Q**2 and the transition to perturbative QCD , Phys. Rept. 226 (1993) 103–171

  29. [29]

    A. F. Falk, H. Georgi, B. Grinstein and M. B. Wise, Heavy Meson Form-factors From QCD, Nucl. Phys. B 343 (1990) 1–13

  30. [30]

    Form Factor Relations for Heavy-to-Light Transitions

    B. Stech, Form-factor relations for heavy to light transitions , Phys. Lett. B 354 (1995) 447–452, [hep-ph/9502378]

  31. [31]

    J. M. Soares, Form-factor relations for heavy to heavy and heavy to light meson transitions , Phys. Rev. D 54 (1996) 6837–6841, [ hep-ph/9607284]

  32. [32]

    G. F. Sterman and P. Stoler, Hadronic form-factors and perturbative QCD , Ann. Rev. Nucl. Part. Sci. 47 (1997) 193–233, [ hep-ph/9708370]

  33. [33]

    Heavy-to-Light Form Factors in the Final Hadron Large Energy Limit of QCD

    J. Charles, A. Le Yaouanc, L. Oliver, O. Pene and J. C. Raynal, Heavy to light form-factors in the heavy mass to large energy limit of QCD , Phys. Rev. D 60 (1999) 014001, [hep-ph/9812358]

  34. [34]

    Chau, H.-Y

    L.-L. Chau, H.-Y. Cheng, W. K. Sze, H. Yao and B. Tseng, Charmless nonleptonic rare decays of B mesons, Phys. Rev. D 43 (1991) 2176–2192

  35. [35]

    Nonfactorizable Amplitudes in Weak Nonleptonic Decays of Heavy Mesons

    B. Blok and M. A. Shifman, Nonfactorizable amplitudes in weak nonleptonic decays of heavy mesons, Nucl. Phys. B 389 (1993) 534–548, [ hep-ph/9205221]

  36. [36]

    Non-Leptonic Weak Decays of B Mesons

    M. Neubert and B. Stech, Nonleptonic weak decays of B mesons , Adv. Ser. Direct. High Energy Phys. 15 (1998) 294–344, [ hep-ph/9705292]

  37. [37]

    Nonfactorizable Effects in Spectator and Penguin Amplitudes of Hadronic Charmless B Decays

    H.-Y. Cheng and B. Tseng, Nonfactorizable effects in spectator and penguin amplitudes of hadronic charmless B decays , Phys. Rev. D 58 (1998) 094005, [ hep-ph/9803457]

  38. [38]

    A. Ali, G. Kramer and C.-D. Lu, Experimental tests of factorization in charmless nonleptonic two-body B decays, Phys. Rev. D 58 (1998) 094009, [ hep-ph/9804363]

  39. [39]

    M. A. Shifman, A. I. Vainshtein and V. I. Zakharov, QCD and Resonance Physics. Theoretical Foundations, Nucl. Phys. B 147 (1979) 385–447

  40. [40]

    M. A. Shifman, A. I. Vainshtein and V. I. Zakharov, QCD and Resonance Physics: Applications, Nucl. Phys. B 147 (1979) 448–518

  41. [41]

    L. J. Reinders, H. Rubinstein and S. Yazaki, Hadron Properties from QCD Sum Rules , Phys. Rept. 127 (1985) 1

  42. [42]

    Narison, QCD spectral sum rules , vol

    S. Narison, QCD spectral sum rules , vol. 26. 1989

  43. [43]

    Khodjamirian, Hadron Form Factors

    A. Khodjamirian, Hadron Form Factors. CRC Press, 4, 2020, 10.1201/9781315142005

  44. [44]

    QCD Sum Rules, a Modern Perspective

    P. Colangelo and A. Khodjamirian, QCD sum rules, a modern perspective , hep-ph/0010175

  45. [45]

    New Results on B->pi, K, eta Decay Formfactors from Light-Cone Sum Rules

    P. Ball and R. Zwicky, New results on B → π, K, η decay formfactors from light-cone sum rules, Phys. Rev. D 71 (2005) 014015, [ hep-ph/0406232]

  46. [46]

    B_{d,s}->rho, omega, K*, phi Decay Form Factors from Light-Cone Sum Rules Revisited

    P. Ball and R. Zwicky, Bd,s → ρ, ω, K∗, ϕ decay form-factors from light-cone sum rules revisited, Phys. Rev. D 71 (2005) 014029, [ hep-ph/0412079]

  47. [47]

    On B -> V l l at small dilepton invariant mass, power corrections, and new physics

    S. J¨ ager and J. Martin Camalich,On B → V ℓℓ at small dilepton invariant mass, power corrections, and new physics , JHEP 05 (2013) 043, [ 1212.2263]

  48. [48]

    V. G. Chobanova, T. Hurth, F. Mahmoudi, D. Martinez Santos and S. Neshatpour, Large hadronic power corrections or new physics in the rare decay BßK ∗µ+µ=?, JHEP 07 (2017) 025, [1702.02234]. – 31 –

  49. [49]

    On the impact of power corrections in the prediction of B->K*mu+mu- observables

    S. Descotes-Genon, L. Hofer, J. Matias and J. Virto, On the impact of power corrections in the prediction of B → K ∗µ+µ− observables, JHEP 12 (2014) 125, [ 1407.8526]

  50. [50]

    Reassessing the discovery potential of the $B \to K^{*} \ell^+\ell^-$ decays in the large-recoil region: SM challenges and BSM opportunities

    S. J¨ ager and J. Martin Camalich,Reassessing the discovery potential of the B → K ∗ℓ+ℓ− decays in the large-recoil region: SM challenges and BSM opportunities , Phys. Rev. D 93 (2016) 014028, [ 1412.3183]

  51. [51]

    Ciuchini, M

    M. Ciuchini, M. Fedele, E. Franco, A. Paul, L. Silvestrini and M. Valli, Lessons from the B0,+ → K ∗0,+µ+µ− angular analyses, Phys. Rev. D 103 (2021) 015030, [ 2011.01212]

  52. [52]

    Altmannshofer, S

    W. Altmannshofer, S. G. Christensen and P. Stangl, Large Hadronic Effects in B → K ∗µµ?, 2603.27753

  53. [53]

    Angular Distribution and CP Asymmetries in the Decays B->K^-pi^+e^-e^+ and B->pi^-pi^+e^-e^+

    F. Kruger, L. M. Sehgal, N. Sinha and R. Sinha, Angular distribution and CP asymmetries in the decays ¯B → K −π+e−e+ and ¯B → π−π+e−e+, Phys. Rev. D 61 (2000) 114028, [hep-ph/9907386]

  54. [54]

    Symmetries and Asymmetries of B -> K* mu+ mu- Decays in the Standard Model and Beyond

    W. Altmannshofer, P. Ball, A. Bharucha, A. J. Buras, D. M. Straub and M. Wick, Symmetries and Asymmetries of B → K ∗µ+µ− Decays in the Standard Model and Beyond , JHEP 01 (2009) 019, [ 0811.1214]

  55. [55]

    Implications from clean observables for the binned analysis of B -> K*ll at large recoil

    S. Descotes-Genon, J. Matias, M. Ramon and J. Virto, Implications from clean observables for the binned analysis of B− > K ∗ µ+µ− at large recoil, JHEP 01 (2013) 048, [1207.2753]

  56. [56]

    Complete Anatomy of B -> K*ll and its angular distribution

    J. Matias, F. Mescia, M. Ramon and J. Virto, Complete Anatomy of ¯Bd− > ¯K ∗0(− > Kπ )l+l− and its angular distribution , JHEP 04 (2012) 104, [ 1202.4266]

  57. [57]

    New observables in the decay mode anti-B --> anti-K*0 l+ l-

    U. Egede, T. Hurth, J. Matias, M. Ramon and W. Reece, New observables in the decay mode ¯Bd → ¯K ∗0l+l−, JHEP 11 (2008) 032, [ 0807.2589]

  58. [58]

    More Model-Independent Analysis of b->s Processes

    G. Hiller and F. Kruger, More model-independent analysis of b → s processes, Phys. Rev. D 69 (2004) 074020, [ hep-ph/0310219]

  59. [59]

    $R_K$ and future $b \to s \ell \ell$ BSM opportunities

    G. Hiller and M. Schmaltz, RK and future b → sℓℓ physics beyond the standard model opportunities, Phys. Rev. D 90 (2014) 054014, [ 1408.1627]

  60. [60]

    Optimizing the basis of B->K*ll observables in the full kinematic range

    S. Descotes-Genon, T. Hurth, J. Matias and J. Virto, Optimizing the basis of B → K ∗ll observables in the full kinematic range , JHEP 05 (2013) 137, [ 1303.5794]

  61. [61]

    Charming Penguins in B decays

    M. Ciuchini, E. Franco, G. Martinelli and L. Silvestrini, Charming penguins in B decays , Nucl. Phys. B 501 (1997) 271–296, [ hep-ph/9703353]

  62. [62]

    C. W. Bauer, D. Pirjol, I. Z. Rothstein and I. W. Stewart, B — > M(1) M(2): Factorization, charming penguins, strong phases, and polarization , Phys. Rev. D 70 (2004) 054015, [hep-ph/0401188]

  63. [63]

    $B\to K^* \ell^+ \ell^-$ decays at large recoil in the Standard Model: a theoretical reappraisal

    M. Ciuchini, M. Fedele, E. Franco, S. Mishima, A. Paul, L. Silvestrini et al., B → K ∗ℓ+ℓ− decays at large recoil in the Standard Model: a theoretical reappraisal , JHEP 06 (2016) 116, [1512.07157]

  64. [64]

    Ciuchini, M

    M. Ciuchini, M. Fedele, E. Franco, A. Paul, L. Silvestrini and M. Valli, Charming penguins and lepton universality violation in b → sℓ+ℓ− decays, Eur. Phys. J. C 83 (2023) 64, [2110.10126]

  65. [65]

    Charm-loop effect in $B \to K^{(*)} \ell^{+} \ell^{-}$ and $B\to K^*\gamma$

    A. Khodjamirian, T. Mannel, A. A. Pivovarov and Y. M. Wang, Charm-loop effect in B → K (∗)ℓ+ℓ− and B → K ∗γ, JHEP 09 (2010) 089, [ 1006.4945]. – 32 –

  66. [66]

    Resonances gone topsy turvy - the charm of QCD or new physics in $b \to s \ell^+ \ell^-$?

    J. Lyon and R. Zwicky, Resonances gone topsy turvy - the charm of QCD or new physics in b → sℓ+ℓ−?, 1406.0566

  67. [67]

    Gubernari, D

    N. Gubernari, D. van Dyk and J. Virto, Non-local matrix elements in B(s) → {K (∗), ϕ}ℓ+ℓ−, JHEP 02 (2021) 088, [ 2011.09813]

  68. [68]

    Mahajan and D

    N. Mahajan and D. Mishra, Smallness of charm-loop effects in B →K(*)ℓℓ at low q2: Light-meson distribution-amplitude analysis , Phys. Rev. D 111 (2025) L031504, [2409.00181]

  69. [69]

    Isidori, Z

    G. Isidori, Z. Polonsky and A. Tinari, Explicit estimate of charm rescattering in B0→K0ℓ¯ℓ, Phys. Rev. D 111 (2025) 093007, [ 2405.17551]

  70. [70]

    I. E. Halperin and A. Zhitnitsky, B — > K eta-prime decay as unique probe of eta-prime meson, Phys. Rev. D 56 (1997) 7247–7258, [ hep-ph/9704412]

  71. [71]

    I. E. Halperin and A. Zhitnitsky, Why is the B — > eta-prime X decay width so large? , Phys. Rev. Lett. 80 (1998) 438–441, [ hep-ph/9705251]

  72. [72]

    E. V. Shuryak and A. R. Zhitnitsky, The Gluon / charm content of the eta-prime meson and instantons, Phys. Rev. D 57 (1998) 2001–2004, [ hep-ph/9706316]

  73. [73]

    B to eta' + X and The QCD Anomaly

    D. Atwood and A. Soni, B — > eta-prime + X and the QCD anomaly , Phys. Lett. B 405 (1997) 150–156, [ hep-ph/9704357]

  74. [74]

    Enhanced $b\to sg$ Decay, Inclusive $\eta^\prime$ Production, and the Gluon Anomaly

    W.-S. Hou and B. Tseng, Enhanced b — > s g decay, inclusive eta-prime production, and the gluon anomaly , Phys. Rev. Lett. 80 (1998) 434–437, [ hep-ph/9705304]

  75. [75]

    A. Ali, J. Chay, C. Greub and P. Ko, Contribution of b — > s gluon gluon through the QCD anomaly in exclusive decays B+- — > (eta-prime, eta) (K+-, K*+-) and B0 — > (eta-prime, eta) (K0, K*0) , Phys. Lett. B 424 (1998) 161–174, [ hep-ph/9712372]

  76. [76]

    An analysis of two-body non-leptonic B decays involving light mesons in the standard model

    A. Ali and C. Greub, An Analysis of two-body nonleptonic B decays involving light mesons in the standard model , Phys. Rev. D 57 (1998) 2996–3016, [ hep-ph/9707251]

  77. [77]

    Charmless Hadronic Two-body Decays of B_u and B_d Mesons

    Y.-H. Chen, H.-Y. Cheng, B. Tseng and K.-C. Yang, Charmless hadronic two-body decays of B(u) and B(d) mesons , Phys. Rev. D 60 (1999) 094014, [ hep-ph/9903453]

  78. [78]

    The Gluonic Decay of the $b$--Quark and tne $\eta '$--Meson

    H. Fritzsch, The Gluonic decay of the b quark and the eta-prime meson , Phys. Lett. B 415 (1997) 83–89, [ hep-ph/9708348]

  79. [79]

    The Color-Octet intrinsic charm in $\eta^\prime$ and $B\to \eta^\prime X$ decays

    F. Yuan and K.-T. Chao, The Color octet intrinsic charm in eta-prime and b — > eta-prime X decays, Phys. Rev. D 56 (1997) R2495–R2498, [ hep-ph/9706294]

  80. [80]

    Bagchi, P

    B. Bagchi, P. Bhattacharyya, S. Sen and J. Chakrabarti, Mixing angles and decay constants of eta, eta-prime and eta(c) , Phys. Rev. D 60 (1999) 074002

Showing first 80 references.