Search For Supersymmetry İn Events With One Lepton And Multiple Jets Exploiting The Angular Correlation Between The Lepton And The Missing Transverse Momentum İn Proton–Proton Collisions At ?S=13 Tev

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Küçük Resim

Tarih

2018

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Elsevier

Erişim Hakkı

Özet

Results are presented from a search for supersymmetry in events with a single electron or muon and hadronic jets. The data correspond to a sample of proton–proton collisions at ?s=13 TeVwith an integrated luminosity of 35.9fb?1, recorded in 2016 by the CMS experiment. Anumber of exclusive search regions are defined according to the number of jets, the number of b-tagged jets, the scalar sum of the transverse momenta of the jets, and the scalar sum of the missing transverse momentum and the transverse momentum of the lepton. Standard model background events are reduced significantly by requiring a large azimuthal angle between the direction of the lepton and of the reconstructed Wboson, computed under the hypothesis that all of the missing transverse momentum in the event arises from a neutrino produced in the leptonic decay of the Wboson. The numbers of observed events are consistent with the expectations from standard model processes, and the results are used to set lower limits on supersymmetric particle masses in the context of two simplified models of gluino pair production. In the first model, where each gluino decays to a top quark–antiquark pair and a neutralino, gluino masses up to 1.8TeVare excluded at the 95% CL. The second model considers a three-body decay to a light quark–antiquark pair and a chargino, which subsequently decays to a W boson and a neutralino. In this model, gluinos are excluded up to 1.9TeV.

Açıklama

Anahtar Kelimeler

CMS, Physics, Supersymmetry

Kaynak

WoS Q Değeri

Q2

Scopus Q Değeri

Q1

Cilt

Sayı

Künye

Physics Letters B 780 (2018) 384–409