Relating B_s Mixing and B_s -> mu+mu- with New Physics

Alexey A Petrov; Eugene Golowich; Gagik K Yeghiyan; JoAnne Hewett; Sandip Pakvasa

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Relating B_s Mixing and B_s -> mu+mu- with New Physics

Eugene Golowich, JoAnne Hewett, Sandip Pakvasa, Alexey A Petrov, Gagik K Yeghiyan

High Energy Physics - Phenomenology · Submitted 31 Jan 2011

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim In most cases, this constrains NP amplitudes for $B_{s} \to \mu^+\mu^-$ to lie below the SM component.

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arXiv ID1102.0009 (version 2)

Pith ID3GLMIB5R, Pith's permanent record of this paper and its review

CitationAlexey A Petrov, Eugene Golowich, Gagik K Yeghiyan, JoAnne Hewett, Sandip Pakvasa. "Relating B_s Mixing and B_s -> mu+mu- with New Physics." arXiv:1102.0009 (2011). https://pith.science/paper/3GLMIB5R

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What the abstract itself states, as probabilities: claims first 0.02 · states limitation 0.28 · human participants 0.01 · controlled comparison 0.27 · randomized assignment 0.01 · states quantitative result 0.16 · compares with prior results 0.30 · mentions code or data availability 0.01.

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We perform a study of the Standard Model (SM) fit to the mixing quantities $\Delta M_{B_s}$, and $\Delta \Gamma_{B_s}/\Delta M_{B_s}$ in order to bound contributions of New Physics to $B_s$ mixing. We then use this to explore the branching fraction of $B_{s} \to \mu^+\mu^-$ in certain models of New Physics (NP). In most cases, this constrains NP amplitudes for $B_{s} \to \mu^+\mu^-$ to lie below the SM component.

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#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We perform a study of the Standard Model (SM) fit to the mixing quantities $\Delta M_{B_s}$, and $\Delta \Gamma_{B_s}/\Delta M_{B_s}$ in order to bound contributions of New Physics to $B_s$ mixing.	contribution 0.91	0.93	0.10	asserted 0.90
s1	We then use this to explore the branching fraction of $B_{s} \to \mu^+\mu^-$ in certain models of New Physics (NP).	contribution 0.67	0.88	0.07	asserted 0.93
s2	In most cases, this constrains NP amplitudes for $B_{s} \to \mu^+\mu^-$ to lie below the SM component.	result 0.88	0.79	0.63	asserted 0.84

What kind of paper the classifier reports this is: theoretical result 0.96 · evidence from analysis of existing data 0.76.

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Original abstract

We perform a study of the Standard Model (SM) fit to the mixing quantities $\Delta M_{B_s}$, and $\Delta \Gamma_{B_s}/\Delta M_{B_s}$ in order to bound contributions of New Physics to $B_s$ mixing. We then use this to explore the branching fraction of $B_{s} \to \mu^+\mu^-$ in certain models of New Physics (NP). In most cases, this constrains NP amplitudes for $B_{s} \to \mu^+\mu^-$ to lie below the SM component.

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References

Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

B_s->D_s/B->D Semileptonic Form-Factor Ratios and Their Application to BR(B^0_s->\mu^+\mu^-)
hep-lat 2012-02 conditional novelty 6.0 of 10

First lattice-QCD determination of the B_s to D_s over B to D scalar form-factor ratio gives 1.046(44)(15), consistent with U-spin symmetry and roughly four sigma below the QCD sum-rule estimate of 1.24(8).
One constraint to kill them all?
hep-ph 2017-12 conditional novelty 5.0 of 10

Updated lattice inputs raise the Standard Model B_s mixing prediction to 20.0 ps^-1 against a measured 17.76 ps^-1, tightening Z-prime and leptoquark mass bounds by roughly a factor of five.
New Physics in b -> s mu+ mu-: CP-Conserving Observables
hep-ph 2010-08 accept novelty 5.0 of 10

New vector-axial-vector operators can push most CP-conserving asymmetries in b to s mu mu decays well past Standard Model predictions, while scalar and tensor operators can do so only for the forward-backward asymmetr...
Implications of LHCb measurements and future prospects
hep-ex 2012-08 accept novelty 4.0 of 10

LHCb's first 1.0 fb^-1 of 7 TeV data already constrain several new-physics scenarios, and a proposed upgrade to 50 fb^-1 would sharpen those constraints by roughly an order of magnitude.

How the literature uses it

18 arXiv papers cite this in 28 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 15 sentences without a confident label

Uses its method or tool 1 paper

[ref] and assume λ^'_i23 = λ^'_i32 in our further calculations.

New Physics Contribution to $B_s \to \mu^+ \mu^-$ within R-Parity Violating Supersymmetric Models · Introduction · 0.86

Uses its data or values 7 papers

The experimental result [ref] and the SM prediction (using the NLO expression of [ref] and the error estimate of [ref] ) used to obtain our updated bounds on the NMFV parameters are given by: [equation]

Updated Constraints on General Squark Flavor Mixing · Section · 0.99
These entries were the ones available when the analysis in Ref. [ref] was being performed.

Relating B_s Mixing and B_s->mu+mu- with New Physics - An Update · Standard Model Analysis and Experimental Review · 0.99
If we assume a 10% uncertainty in the SUSY calculation and combining the experimental limits together with the corresponding SM predictions, we get the following constraints at 95% C.L. on the $R(X)$: * $B →X_s γ$ [ref] [equation] * $B_q →l^+ l^-$ [ref] [equation] * $ΔM_B_q$ [ref] [equation]

Resurrecting light stops after the 125 GeV Higgs in the baryon number violating CMSSM · Numerical setup · 0.96

Cites it as background 4 papers

Since this is a written version of a talk given at DPF 2011, I avoid theoretical complexities and limit the number of equations; these can be accessed in Ref. [ref] .

Relating B_s Mixing and B_s->mu+mu- with New Physics - An Update · Introduction · 0.84
The analyses of these decays in the context of the SM as well as in some NP models have been performed in the literature: $$ [ref] , $$ [ref] , $$ [ref] , $$ [ref] , $$ [ref] .

New Physics in b -> s mu+ mu-: CP-Conserving Observables · Introduction · 0.97
The sensitivity of BR($B_s →μ^+ μ^-$) has been discussed extensively in the literature in the past years, mostly in constrained versions of the Minimal Supersymmetric Standard Model (MSSM) [ref] and, more recently, in the phenomenological MSSM (pMSSM) [ref] .

Supersymmetry confronts Bs -> mu+mu-: Present and future status · Introduction · 1.00

What it cites · 38 sentences without a confident label

Builds on 2 papers

Inserting obvious modifications for $D^0 →B_s$, we have from the branching fraction relation Eq. (39) of Ref. [ref] ,

Relating D0-anti-D0 Mixing and D0 -> l+l- with New Physics · $Z'$ Boson · 0.94
The branching ratio of $B_s →μ^+μ^-$ can be related to the experimentally-measured[Here we use $ΔM_B_s$ from Table [ref], as the separation of NP and SM contributions used in the rest of this paper, $x_B_s=x_SM3+x_SM4$, is not possible due to loops with both $t'$ and $t$, $c$, or $u$ quarks.] $x_B_s$ as [ref]

SM with four generations: Selected implications for rare B and K decays · Fourth generation models · 0.83

Uses the method or tool of 1 paper

Using methods similar to those in Ref. [ref] , we obtain

Relating D0-anti-D0 Mixing and D0 -> l+l- with New Physics · Generic NP Models with tree-level amplitudes · 0.99

Uses data or values from 6 papers

whereas the corresponding SM prediction from Ref. [ref] is $r^(SM) = (49.7 ±9.4) ×10^-4$.

Theoretical update of Bs-Bs-bar mixing · The Ratio $ΔΓ_B_s/ΔM_B_s$ · 0.91
Since the long distance (LD) estimate for the branching fraction of $B_s →μ^+μ^-$ in the SM gives $B^(LD)_B_s →μ^+μ^- ∼6 ×10^-11$ [ref] , we consider only the short distance (SD) component in the following.

Rare Charm Decays in the Standard Model and Beyond · $B_s →μ^+μ^-$ · 0.92
We also used updated constraints on CKM matrix elements [ref] .

Constraints on the Four-Generation Quark Mixing Matrix from a Fit to Flavor-Physics Data · Fourth generation models · 1.00

Cites as background 6 papers

The relationship between $ΔM_B_s$ and $B_B_s →μ^+μ^-$ in the model with four generations of quarks has been previously studied in detail in [ref] .

SM with four generations: Selected implications for rare B and K decays · Fourth generation models · 0.88
While many ideas exist on how to suppress those interactions (see, e.g. [ref] ), the ultimate test of those ideas would involve direct observation of scalar-mediated FCNC.

Yukawa Alignment in the Two-Higgs-Doublet Model · FCNC Higgs interactions · 0.98
While many ideas exist on how to suppress those interactions (see, e.g. [ref] ), the ultimate test of those ideas would involve direct observation of scalar-mediated FCNC.

Flavor Changing Scalar Interactions · FCNC Higgs interactions · 0.98

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