A search for the production of heavy resonances decaying into top quark-antiquark pairs is presented. The analysis is performed in the lepton+jets and fully hadronic channels using data collected in proton-proton collisions at s=13 TeV using the CMS detector at the LHC, corresponding to an integrated luminosity of 2.6 fb−1. The selection is optimized for massive resonances, where the top quarks have large Lorentz boosts. No evidence for resonant t t ¯ production is found in the data, and upper limits on the production cross section of heavy resonances are set. The exclusion limits for resonances with masses above 2 TeV are significantly improved compared to those of previous analyses at s=8 TeV.

Sirunyan, A., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., Brandstetter, J., et al. (2017). Search for t t ¯ resonances in highly boosted lepton+jets and fully hadronic final states in proton-proton collisions at √s=13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2017(7) [10.1007/JHEP07(2017)001].

Search for t t ¯ resonances in highly boosted lepton+jets and fully hadronic final states in proton-proton collisions at √s=13 TeV

Ortona, G.;Brianza, L.;Brivio, F.;Ciriolo, V.;Dinardo, M. E.;Fiorendi, S.;Ghezzi, A.;Govoni, P.;Malberti, M.;Manzoni, R. A.;Moroni, L.;Paganoni, M.;Pauwels, K.;Pigazzini, S.;Ragazzi, S.;Tabarelli de Fatis, T.;Lucchini, M. T.;Massironi, A.;Benaglia, A.;De Guio, F.;
2017

Abstract

A search for the production of heavy resonances decaying into top quark-antiquark pairs is presented. The analysis is performed in the lepton+jets and fully hadronic channels using data collected in proton-proton collisions at s=13 TeV using the CMS detector at the LHC, corresponding to an integrated luminosity of 2.6 fb−1. The selection is optimized for massive resonances, where the top quarks have large Lorentz boosts. No evidence for resonant t t ¯ production is found in the data, and upper limits on the production cross section of heavy resonances are set. The exclusion limits for resonances with masses above 2 TeV are significantly improved compared to those of previous analyses at s=8 TeV.
Articolo in rivista - Articolo scientifico
Beyond Standard Model; Hadron-Hadron scattering (experiments);
English
2017
2017
7
open
Sirunyan, A., Tumasyan, A., Adam, W., Asilar, E., Bergauer, T., Brandstetter, J., et al. (2017). Search for t t ¯ resonances in highly boosted lepton+jets and fully hadronic final states in proton-proton collisions at √s=13 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2017(7) [10.1007/JHEP07(2017)001].
File in questo prodotto:
File Dimensione Formato  
10281-187768.pdf

accesso aperto

Tipologia di allegato: Publisher’s Version (Version of Record, VoR)
Dimensione 1.38 MB
Formato Adobe PDF
1.38 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/187768
Citazioni
  • Scopus 40
  • ???jsp.display-item.citation.isi??? 21
Social impact