Search for supersymmetry in the all-hadronic final state using top quark tagging in pp collisions at sqrt(s) = 13 TeV

Abstract : A search is presented for supersymmetry in all-hadronic events with missing transverse momentum based on tagging of top quarks. The data sample corresponds to an integrated luminosity of 2.3 inverse femtobarns of proton-proton collisions at a center-of-mass energy of 13 TeV, collected with the CMS detector at the LHC. Search regions are defined using the properties of reconstructed jets, the presence of bottom and top quark candidates, and an imbalance in transverse momentum. With no statistically significant excess of events observed beyond the expected contributions from the standard model, we set exclusion limits at 95% confidence level on the masses of new particles in the context of simplified models of direct and gluino-mediated top squark production. For direct top squark production with decays to a top quark and a neutralino, top squark masses up to 740 GeV and neutralino masses up to 240 GeV are excluded. Gluino masses up to 1550 GeV and neutralino masses up to 900 GeV are excluded for models of gluino pair production where each gluino decays to a top-antitop quark pair and a neutralino.
Type de document :
Article dans une revue
Physical Review D, American Physical Society, 2017, 96, pp.012004. 〈10.1103/PhysRevD.96.012004〉
Liste complète des métadonnées

http://hal.in2p3.fr/in2p3-01430537
Contributeur : Sylvie Flores <>
Soumis le : mardi 10 janvier 2017 - 07:38:12
Dernière modification le : jeudi 10 mai 2018 - 02:00:00

Lien texte intégral

Identifiants

Citation

V. Khachatryan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Search for supersymmetry in the all-hadronic final state using top quark tagging in pp collisions at sqrt(s) = 13 TeV. Physical Review D, American Physical Society, 2017, 96, pp.012004. 〈10.1103/PhysRevD.96.012004〉. 〈in2p3-01430537〉

Partager

Métriques

Consultations de la notice

471