Search for $\tau \to 3\mu$ decays using $\tau$ leptons produced in D and B meson decays

Search for $\tau \to 3\mu$ decays using $\tau$ leptons produced in D and B meson decays

CMS

Collaboration

2019

Report number:

CMS-PAS-BPH-17-004

Experiments:

CERN-LHC-CMS

View in:

CERN Document Server

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reference search11 citations

Citations per year

Abstract:

A search for charged lepton flavor violating decays

\tau\to3\mu

has been performed using proton-proton collisions with a center-of-mass energy of 13 TeV. The analysis uses the data set collected by the CMS detector in 2016, corresponding to an integrated luminosity of 33 fb

^{-1}

, and exploits

\tau

leptons produced in D and B meson decays. No signal is observed, and an upper limit of

8.8\times 10^{-8}

is set at the

90\%

confidence level on the branching fraction of the

\tau

lepton to three muons.

Note:

Preliminary results

Monte-Carlo
p p: colliding beams
B: semileptonic decay
D/s: leptonic decay
tau: leptonic decay
lepton: flavor: violation
p p: scattering
tau: branching ratio: upper limit
numerical calculations: Monte Carlo
muon: multiple production

References(19)

Figures(19)

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Search for τ→3μ\tau \to 3\muτ→3μ decays using τ\tauτ leptons produced in D and B meson decays

Citations per year

Search for $\tau \to 3\mu$ decays using $\tau$ leptons produced in D and B meson decays