Naslov
Search for the lepton flavor violating decay tau -> 3 mu in proton-proton collisions at root s=13 TeV
(Search for the lepton flavor violating decay $τ$ $\to$ 3$μ$ in proton-proton collisions at $\sqrt{;;;s};;; =$ 13 TeV)

Autori
Sirunyan, Albert M ; ... ; Antunović, Željko ; Brigljević, Vuko ; Ferenček, Dinko ; Giljanović, Duje ; Godinović, Nikola ; Kovač, Marko ; Lelas, Damir ; Majumder, Devdatta ; Mesić, Benjamin ; Puljak, Ivica ; Roguljić, Matej ; Starodumov, Andrey ; Đurić, Senka ; Šuša, Tatjana ; Šćulac, Toni ; ... ; Vetens, Wren

Kolaboracija
CMS Collaboration

Izvornik
The Journal of high energy physics (1126-6708) 01 (2021); 163, 37

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
High energy physics ; Experimental particle physics ; LHC ; CMS ; Hadron-Hadron scattering (experiments) ; Higgs physics ; p p: colliding beams ; Higgs particle: pair production ; bottom: 2 ; p p: scattering ; Higgs particle: coupling ; Higgs particle: hadroproduction ; Higgs particle: decay modes ; bottom: pair production ; photon: pair production ; top: pair production ; coupling: Yukawa ; coupling constant: upper limit ; vector boson: fusion ; mass spectrum: two-photon ; Standard model

Sažetak
Results are reported from a search for the lepton flavor violating decay $\tau$ $\to$ 3$\mu$ in proton-proton collisions at $\sqrt{; ; ; s}; ; ; =$ 13 TeV. The data sample corresponds to an integrated luminosity of 33.2 fb$^{; ; ; -1}; ; ; $ recorded by the CMS experiment at the LHC in 2016. The search exploits $\tau$ leptons produced in both W boson and heavy-flavor hadron decays. No significant excess above the expected background is observed. An upper limit on the branching fraction $\mathcal{; ; ; B}; ; ; (\tau$ $\to$ 3$\mu)$ of 8.0 $\times$ 10$^{; ; ; -8}; ; ; $ at 90% confidence level is obtained, with an expected upper limit of 6.9 $\times$ 10$^{; ; ; -8}; ; ; $.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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