Measurement of the $B_s^0\to {\mu }^{+}{\mu }^{-}$ branching fraction and search for $B^0\to {\mu }^{+}{\mu }^{-}$ decays at the LHCb experiment

Abstract

A search for the rare decays $B_s^0\to {\mu }^{+}{\mu }^{-}$ and $B^0\to {\mu }^{+}{\mu }^{-}$ is performed at the LHCb experiment. The data analysed correspond to an integrated luminosity of 1 fb${}^{-1}$ of $pp$ collisions at a centre-of-mass energy of 7 TeV and 2 fb${}^{-1}$ at 8 TeV. An excess of $B_s^0\to {\mu }^{+}{\mu }^{-}$ signal candidates with respect to the background expectation is seen with a significance of 4.0 standard deviations. A time-integrated branching fraction of $\mathcal{B}(B_s^0\to {\mu }^{+}{\mu }^{-})=(2.9_{-1.0}^{+1.1})\times 10^{-9}$ is obtained and an upper limit of $\mathcal{B}(B^0\to {\mu }^{+}{\mu }^{-})<7.4\times 10^{-10}$ at 95% confidence level is set. These results are consistent with the Standard Model expectations.

12 pages, 3 figures, Phys. Rev. Lett. 111, 101805 (2013)

References in corpus (9)

• PYTHIA 6.4 Physics and Manual
• Probing New Physics via the $B_s^0\to {\mu }^{+}{\mu }^{-}$ Effective Lifetime
• Strong constraints on the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-
• Search for the decay Bs0 -> mu mu with the ATLAS detector
• Search for B_s to mu^+ mu^- and B^0 to mu^+ mu^- decays
• ${\Lambda }_b\to p,\Lambda$ transition form factors from QCD light-cone sum rules
• First observation of the decay $B^{+}\to {\pi }^{+}{\mu }^{+}{\mu }^{-}$
• Search for $B_s\to {\mu }^{+}{\mu }^{-}$ and $B_d\to {\mu }^{+}{\mu }^{-}$ decays with the full CDF Run II data set
• Search for the rare decay Bs->mumu

Cited by in corpus (210)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• LHCb Detector Performance
• Observation of the rare $B_s^0\to {\mu }^{+}{\mu }^{-}$ decay from the combined analysis of CMS and LHCb data
• B_{s,d} -> l+ l- in the Standard Model with Reduced Theoretical Uncertainty
• One Leptoquark to Rule Them All: A Minimal Explanation for $R_{D^{(\ast )}}$, $R_K$ and $(g-2{)}_{\mu }$
• Understanding the B->K*mu+mu- Anomaly
• Flavor models for $\bar{B}\to D^{(\ast )}\tau \bar{\nu }$
• Measurement of the $B_s^0\to {\mu }^{+}{\mu }^{-}$ branching fraction and effective lifetime and search for $B^0\to {\mu }^{+}{\mu }^{-}$ decays
• $SU(2)\times U(1)$ gauge invariance and the shape of new physics in rare $B$ decays
• A taste of dark matter: Flavour constraints on pseudoscalar mediators
• A Renormalizable Model for the Galactic Center Gamma Ray Excess from Dark Matter Annihilation
• Study of the rare decays of $B_s^0$ and $B^0$ mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector
• Comprehensive Bayesian Analysis of Rare (Semi)leptonic and Radiative B Decays
• 331 models facing new b -> s mu^+ mu^- data
• Selection and processing of calibration samples to measure the particle identification performance of the LHCb experiment in Run 2
• Lepton Flavor Non-Universality in B-meson Decays from a U(2) Flavor Model
• On the anomalies in the latest LHCb data
• An explicit Z'-boson explanation of the B->K*mu+mu- anomaly
• New Physics in $b\to s{\mu }^{+}{\mu }^{-}$ after the Measurement of $R_{K^{\ast }}$
• Physics at the e+ e- Linear Collider
• Left-handed Z' and Z FCNC quark couplings facing new b -> s mu^+ mu^- data
• Rare $B$ Decays as Tests of the Standard Model
• Search for long-lived scalar particles in $B^{+}\to K^{+}\chi ({\mu }^{+}{\mu }^{-})$ decays
• On minimal Z' explanations of the B->K*mu+mu- anomaly
• Towards the Identification of New Physics through Quark Flavour Violating Processes
• SUSY models under siege: LHC constraints and electroweak fine-tuning
• Enhanced electromagnetic correction to the rare $B$-meson decay $B_{s,d}\to {\mu }^{+}{\mu }^{-}$
• Scalar leptoquarks and the rare B meson decays
• The $B$ Anomalies and New Physics in $b\to s{e}^{+}{e}^{-}$
• Electroweak Corrections to $B_{s,d}\to {\ell }^{+}{\ell }^{-}$
• Global fits to b -> s ll data and signs for lepton non-universality
• On the LHCb anomaly in B -> K* l+ l-
• Three-loop QCD corrections to B_s -> mu^+ mu^-
• Charge and Color Breaking Constraints in MSSM after the Higgs Discovery at LHC
• Z-Z' Mixing and Z-Mediated FCNCs in SU(3)_C x SU(3)_L x U(1)_X Models
• GUT-inspired SUSY and the muon g-2 anomaly: prospects for LHC 14 TeV
• A light pseudoscalar of 2HDM confronted with muon g-2 and experimental constraints
• FlavBit: A GAMBIT module for computing flavour observables and likelihoods
• B-physics from Nf=2 tmQCD: the Standard Model and beyond
• The Extent of the Stop Coannihilation Strip
• What next for the CMSSM and the NUHM: Improved prospects for superpartner and dark matter detection
• Implications of Improved Higgs Mass Calculations for Supersymmetric Models
• $b\to s{\ell }^{+}{\ell }^{-}$ Transitions in Two-Higgs-Doublet Models
• Low-mass right-handed sneutrino dark matter: SuperCDMS and LUX constraints and the Galactic Centre gamma-ray excess
• Prospects for dark matter searches in the pMSSM
• The pMSSM10 after LHC Run 1
• The Jeffreys-Lindley Paradox and Discovery Criteria in High Energy Physics
• New Physics in $b\to s{\mu }^{+}{\mu }^{-}$: Distinguishing Models through CP-Violating Effects
• Study of the rare decays of $B_s^0$ and $B^0$ into muon pairs from data collected during the LHC Run 1 with the ATLAS detector
• Predictions for the ${\Lambda }_b\to J/\psi \Lambda (1405)$ decay
• A No-Scale Framework for Sub-Planckian Physics
• Beyond the CMSSM without an Accelerator: Proton Decay and Direct Dark Matter Detection
• $B_{s,d}^0\to {\ell }^{+}{\ell }^{-}$ Decays in the Aligned Two-Higgs-Doublet Model
• Study of the rare semileptonic decays $B_d^0\to K^{\ast }{l}^{+}{l}^{-}$ in scalar leptoquark model
• Spectroscopy and Decay properties of the charmonium
• $B_s\to {\mu }^{+}{\mu }^{-}$ as current and future probe of new physics
• Profile likelihood maps of a 15-dimensional MSSM
• Complementarity of Dark Matter Searches in the pMSSM
• B-meson decay constants from 2+1-flavor lattice QCD with domain-wall light quarks and relativistic heavy quarks
• Hunting the Flavon
• Angular analysis of charged and neutral $B\to K{\mu }^{+}{\mu }^{-}$ decays
• Constraining Supersymmetry using the relic density and the Higgs boson
• A clockwork solution to the flavor puzzle
• Lessons and Prospects from the pMSSM after LHC Run I: Neutralino LSP
• Constraining Type II 2HDM in Light of LHC Higgs Searches
• Muon $g-2$ in the Aligned Two Higgs Doublet Model
• Testable two-loop radiative neutrino mass model based on an $LLQ{d}^{c}Q{d}^c$ effective operator
• Low fine tuning in the MSSM with higgsino dark matter and unification constraints
• New-physics signals of a model with a vector-singlet up-type quark
• Time dependence in $B\to V\ell \ell$ decays
• On Flavour and Naturalness of Composite Higgs Models
• Decay constants of B-mesons from non-perturbative HQET with two light dynamical quarks
• Two-Higgs doublet solution to the LSND, MiniBooNE and muon $g-2$ anomalies
• Lepton flavour violating B meson decays via scalar leptoquark
• Perspective of monochromatic gamma-ray line detection with the High Energy cosmic-Radiation Detection (HERD) facility onboard China's Space Station
• Bounds on Dark Matter Properties from Radio Observations of Ursa Major II using the Green Bank Telescope
• Natural MSSM after the LHC 8 TeV run
• Exploring MSSM for Charge and Color Breaking and Other Constraints in the Context of Higgs@125 GeV
• Can we reach the Zeptouniverse with rare K and B_{s,d} decays?
• Probing anomalous $t\bar{t}Z$ interactions with rare meson decays
• Collider Interplay for Supersymmetry, Higgs and Dark Matter
• Likelihood Analysis of the Minimal AMSB Model
• Determination of the ratio of $b$-quark fragmentation fractions $f_s/f_d$ in $pp$ collisions at $\sqrt{s}=7$ TeV with the ATLAS detector
• Probing the Pseudoscalar portal to Dark Matter via $\bar{b}bZ(\to \ell \ell )+E_T/$: From the LHC to the Galactic Centre Excess
• Updated Constraints on General Squark Flavor Mixing
• Neutralino and gravitino dark matter with low reheating temperature
• Supersymmetry with Light Dark Matter confronting the recent CDMS and LHC Results
• A comparison of the Higgs sectors of the CMSSM and NMSSM for a 126 GeV Higgs boson
• Spectroscopy, Decay properties and Regge trajectories of the $B$ and $B_s$ mesons
• Excited state mass spectra, Decay properties and Regge trajectories of charm and charm-strange mesons
• Muon g-2 and related phenomenology in constrained vector-like extensions of the MSSM
• Bayesian naturalness of the CMSSM and CNMSSM
• Flavor and Collider Signatures of Asymmetric Dark Matter
• Extending LHC Coverage to Light Pseudoscalar Mediators and Coy Dark Sectors
• New Physics Suggested by Atomki Anomaly
• CP violation in the B system
• Supersymmetry with Dark Matter is still natural
• Type-III two Higgs doublet model plus a pseudoscalar confronted with $h\to \mu \tau$, muon $g-2$ and dark matter
• Non-universal Gaugino mass models under the lamppost of muon (g-2)
• Effects of scalar leptoquark on semileptonic ${\Lambda }_b$ decays
• Displaced vertices and long-lived charged particles in the NMSSM with right-handed sneutrinos
• Confronting the Galactic Center Gamma Ray Excess With a Light Scalar Dark Matter
• A testable radiative neutrino mass model without additional symmetries and Explanation for the $b\to s{\ell }^{+}{\ell }^{-}$ anomaly
• Revisiting $B_s\to {\mu }^{+}{\mu }^{-}$ in the two-Higgs doublet models with $Z_2$ symmetry
• Complementarity and Searches for Dark Matter in the pMSSM
• Effect of scalar leptoquarks on the rare decays of B_s meson
• Search for a lighter Higgs in Two Higgs Doublet Models
• New physics in $b\to s{e}^{+}{e}^{-}$?
• Dark matter interpretations of ATLAS searches for the electroweak production of supersymmetric particles in $\sqrt{s}=8$ TeV proton-proton collisions
• Collider signatures of a light NMSSM pseudoscalar in neutralino decays in the light of LHC results
• Constraints on tensor and scalar couplings from $B\to K\bar{\mu }\mu$ and $B_s\to \bar{\mu }\mu$
• Rare b hadron decays at the LHC
• Boosted di-boson from a mixed heavy stop
• Probing the flavor violating scalar top quark signal at the LHC
• Flavor signatures of isosinglet vector-like down quark model
• The NUHM2 after LHC Run 1
• A revisit to a compressed supersymmetric spectrum with 125 GeV Higgs
• Phenomenology of SUSY with General Flavour Violation
• Leptoquark effects on $b\to s\nu \bar{\nu }$ and $B\to K{l}^{+}{l}^{-}$ decay processes
• Reduction of Couplings in the MSSM
• Probing Non-holomorphic MSSM via precision constraints, dark matter and LHC data
• A Three-loop Neutrino Mass Model with a Colored Triplet Scalar
• Search for decays of neutral beauty mesons into four muons
• Likelihood Analysis of Supersymmetric SU(5) GUTs
• Impact of LHC data on muon $g-2$ solutions in vector-like extension of the Constrained MSSM
• Rare semileptonic $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ decays in RS${}_c$ model
• The Top Quark
• Light staus and enhanced Higgs diphoton rate with non-universal gaugino masses and SO(10) Yukawa unification
• pMSSM Studies at the 7, 8 and 14 TeV LHC
• Phenomenological discriminations of the Yukawa interactions in two-Higgs doublet models with $Z_2$ symmetry
• Higgsino Dark Matter in Nonuniversal Gaugino Mass Models
• $h^0\to c\bar{c}$ as a test case for quark flavor violation in the MSSM
• Lightness of Higgs Boson and Spontaneous CP Violation in Lee Model
• Explaining $b\to s{\ell }^{+}{\ell }^{-}$ data by sneutrinos in the $R$-parity violating MSSM
• Testing Times for Supersymmetry: Looking Under the Lamp Post
• Bs to mu mu gamma from Bs to mu mu
• $B_{s,d}^0\to \mu \bar{\mu }$ and $B\to X_s\gamma$ in the R-parity violating MSSM
• Higgs Coupling Measurements and Direct Searches as Complementary Probes of the pMSSM
• Study of the rare decays $B_{s,d}^{\ast }\to {\mu }^{+}{\mu }^{-}$
• LHC constraints on Gravitino Dark Matter
• Non-minimal UED confronts $B_s\to {\mu }^{+}{\mu }^{-}$
• Supersymmetric Fits after the Higgs Discovery and Implications for Model Building
• $B_{s,d}-{\bar{B}}_{s,d}$ mixings and $B_{s,d}\to {\ell }^{+}{\ell }^{-}$ decays within the Manohar-Wise model
• On the contribution of the electromagnetic dipole operator ${\mathcal{O}}_7$ to the ${\bar{B}}_s\to {\mu }^{+}{\mu }^{-}$ decay amplitude
• Long lived charginos in Natural SUSY?
• Axino dark matter with low reheating temperature
• MSSM Dark Matter in Light of Higgs and LUX Results
• Lepton flavor violation in the supersymmetric seesaw model after the LHC 8 TeV run
• Probing new physics through $B_s^{\ast }\to {\mu }^{+}{\mu }^{-}$ decay
• Heavy Flavour Physics at the LHC
• Constraints on Higgs Properties and SUSY Partners in the pMSSM
• Form factors and decay rate of $B_c^{\ast }\to D_s{l}^{+}{l}^{-}$ decays in the QCD sum rules
• Hunting physics beyond the standard model with unusual $W^{\pm }$ and $Z$ decays
• On the importance of direct detection combined limits for spin independent and spin dependent dark matter interactions
• The impact of a 126 GeV Higgs on the neutralino mass
• Predictions for $B_s\to {\bar{K}}^{\ast }\ell \ell$ in non-universal $Z^{\prime }$ models
• Status of rare exclusive $B$ meson decays in 2018
• Progress on semi-leptonic $B_{(s)}$ decays
• Report of the Quark Flavor Physics Working Group
• Probing Radiative Neutrino Mass Generation through Monotop Production
• Light Neutralino Dark Matter in $U(1{)}^{\prime }$ models
• Effects of Sfermion Mixing induced by RGE Running in the Minimal Flavor Violating CMSSM
• Resurrecting light stops after the 125 GeV Higgs in the baryon number violating CMSSM
• Eviction of a 125 GeV "heavy"-Higgs from the MSSM
• Muon g-2 and rare top decays in up-type specific variant axion models
• Lightness of a Higgs Boson and Spontaneous CP-violation in the Lee Model: An Alternative Scenario
• Constraining RS Models by Future Flavor and Collider Measurements: A Snowmass Whitepaper
• Stashing the stops in multijet events at the LHC
• First observation of the rare $B^{+}\to D^{+}{K}^{+}{\pi }^{-}$ decay
• Correlating $B_q^0\to {\mu }^{+}{\mu }^{-}$ and $K_L\to {\pi }^0\nu \bar{\nu }$ Decays with Four Generations
• R-parity violating chargino decays at the LHC
• Explaining the Fermi Galactic Centre Excess in the CMSSM
• Mirage Models Confront the LHC: III. Deflected Mirage Mediation
• Status of the 98 - 125 GeV Higgs scenario with updated LHC-8 data
• The Quark Flavor Violating Higgs Decay $h\to \bar{b}s+b\bar{s}$ in the MSSM
• Electroweak Naturalness and Deflected Mirage Mediation
• Low-mass neutralino dark matter in supergravity scenarios: phenomenology and naturalness
• Selected Topics in Heavy Flavour Physics
• Rare Flavor Processes in Maximally Natural Supersymmetry
• Impact of lepton flavour universality violation on CP violation sensitivity of long baseline neutrino oscillation experiments
• Probing New Physics with $B_s^0\to {\mu }^{+}{\mu }^{-}$: Status and Perspectives
• A Mathematica Package for Calculation of One-Loop Penguins in FCNC Processes
• The relative yields of heavy hadrons as function of transverse momentum at LHC experiments
• Rare decays of b hadrons
• Big-bang nucleosynthesis through bound-state effects with a long-lived slepton in the NMSSM
• Challenges for New Physics in the Flavour Sector
• Phenomenology of the dark matter sector in the 2HDM extended with complex scalar singlet
• The Standard Model from the LHC to future colliders: a contribution to the Workshop "What Next" of INFN
• Summary of the Nobel Symposium on LHC Results
• A composite Froggatt-Nielsen model of flavor
• Implications of the Fermi-LAT Pass 8 Galactic Center Excess on Supersymmetric Dark Matter
• LHC: Past, Present, and Future
• Radiative $B_c$ meson decays $B_c\to \gamma u\bar{d}$
• Recent results on $B\to {\mu }^{+}{\mu }^{-}$ decays with the CMS experiment
• Towards the Identification of New Physics through Correlations between Flavour Observables
• Updated $B_q\to \bar{\ell }\ell$ in the standard model at higher orders
• $B_{s,d}^0\to {\ell }^{+}{\ell }^{-}$ Decays in Two-Higgs Doublet Models
• CKM studies from b physics at hadron machines
• Rare b-hadron decays as probe of new physics
• Flavor Mixing Phenomenology in Supersymmetric Models
• Searching for New Physics in $D^0\to {\mu }^{+}{\mu }^{-},e^{+}{e}^{-},{\mu }^{\pm }{e}^{\mp }$ at BES and/or Super Charm-Tau Factory
• Prospects for Higgs boson scenarios beyond the Standard Model
• Impact on the decay rate of $B_s\to {\mu }^{+}{\mu }^{-}$ from the dispersive two-photon transition
• $B_{s(d)}-{\bar{B}}_{s(d)}$ Mixing and $B_s\to {\mu }^{+}{\mu }^{-}$ Decay in the NMSSM with the Flavour Expansion Theorem
• Rare FCNC top, beauty and charm decays
• Indirect search for New Physics: complementarity to direct searches
• Selection of LHCb results from Run I
• Summary of the CKM 2014 working group on rare decays
• A complete determination of New Physics parameters in leptonic decays of ${\mathbf{B}}_{\mathbf{s}}^0$
• Vector Dark Matter in a $U(1{)}_X$ extended 2HDM