Search for decays of neutral beauty mesons into four muons

Abstract

A search for the non-resonant decays $B_s^0\to {\mu }^{+}{\mu }^{-}{\mu }^{+}{\mu }^{-}$ and $B^0\to {\mu }^{+}{\mu }^{-}{\mu }^{+}{\mu }^{-}$ is presented. The measurement is performed using the full Run 1 data set collected in proton-proton collisions by the LHCb experiment at the LHC. The data correspond to integrated luminosities of $1$ and $2{\mathrm{fb}}^{-1}$ collected at centre-of-mass energies of $7$ and $8\mathrm{TeV}$, respectively. No signal is observed and upper limits on the branching fractions of the non-resonant decays at $95\%$ confidence level are determined to be \mathcal{B}(B^0_s \rightarrow μ^{+}μ^{-}μ^{+}μ^{-}) & < 2.5 \times 10^{-9} \mathcal{B}(B^0 \rightarrow μ^{+}μ^{-}μ^{+}μ^{-}) & < 6.9 \times 10^{-10}.

arXiv commentAll figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-043.html

References in corpus (18)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• A Brief Introduction to PYTHIA 8.1
• Confidence Level Computation for Combining Searches with Small Statistics
• LHCb Detector Performance
• Decay Chain Fitting with a Kalman Filter
• Measurement of the $B_s^0\to {\mu }^{+}{\mu }^{-}$ branching fraction and search for $B^0\to {\mu }^{+}{\mu }^{-}$ decays at the LHCb experiment
• Measurement of the track reconstruction efficiency at LHCb
• Mass distributions marginalized over per-event errors
• Measurement of the fragmentation fraction ratio $f_s/f_d$ and its dependence on $B$ meson kinematics
• Evidence for the decay $X(3872)\to \psi (2S)\gamma$
• Evidence for the Decay Sigma+ -> p mu+ mu-
• Reweighting with Boosted Decision Trees
• Sensitivity of searches for new signals and its optimization
• Search for rare $B_{(s)}^0\to {\mu }^{+}{\mu }^{-}{\mu }^{+}{\mu }^{-}$ decays
• More about sgoldstino interpretation of HyperCP events
• Flavor violating processes with sgoldstino pair production
• Electroweak Effects in the Double Dalitz Decay $B_s\to l^{+}{l}^{-}{l}^{\prime +}{l}^{\prime -}$

Cited by in corpus (10)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• Identification of heavy, energetic, hadronically decaying particles using machine-learning techniques
• Unleashing the full power of LHCb to probe Stealth New Physics
• Decays of charged $B$-mesons into three charged leptons and a neutrino
• Theoretical analysis of the leptonic decays $B\to \ell \ell {\ell }^{\prime }{\bar{\nu }}_{{\ell }^{\prime }}$
• Novel $B$-decay signatures of light scalars at high energy facilities
• Form factors for $B\to j_1{j}_2$ decays into two currents in QCD
• Search for the dark photon in $B^0\to A^{\prime }{A}^{\prime }$, $A^{\prime }\to e^{+}{e}^{-}$, ${\mu }^{+}{\mu }^{-}$, and ${\pi }^{+}{\pi }^{-}$ decays at Belle
• Rare decays of the $B_s-$meson into four charged leptons in the framework of the Standard Model