CMS-PAS-SUS-21-001 | ||
Search for direct pair production of supersymmetric partners to the τ lepton in the all-hadronic final state at √s= 13 TeV | ||
CMS Collaboration | ||
July 2021 | ||
Abstract: A search for the direct production of a pair of τ sleptons in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The search is carried out in events with two τ leptons, each decaying to one or more hadrons and a neutrino. In addition to scenarios in which the τ sleptons decay promptly, the search also addresses scenarios in which the τ sleptons have macroscopic lifetimes, giving rise to displaced τ leptons. The data were collected with the CMS detector from 2016 to 2018, and correspond to an integrated luminosity of 137 fb−1. No significant excess is seen in the observed event counts with respect to the standard model background expectation. Limits on pair production of both promptly decaying and long-lived τ sleptons are obtained in the framework of simplified models in which the τ slepton decays to a τ lepton and the lightest supersymmetric particle (LSP), which is assumed to be stable. In the case of purely left-handed τ slepton pair production, with a prompt decay to a τ lepton and a nearly massless LSP, τ slepton masses between 115 and 340 GeV are excluded. In a scenario with macroscopic τ slepton decay lengths corresponding to cτ0= 0.1 mm, τ slepton masses between 150 and 220 GeV are excluded for the case that the LSP is nearly massless. | ||
Links:
CDS record (PDF) ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, Submitted to PRD. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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