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

Khachatryan, Vardan and Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Md. Ali, Mohd. Adli (2017) Search for t t ¯ resonances in highly boosted lepton+jets and fully hadronic final states in proton-proton collisions at √s=13 TeV. Physical Review D, 96 (1). pp. 1-46. ISSN 2470-0010 E-ISSN 2470-0029

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Abstract

A search for the production of heavy resonances decaying into top quarkantiquark 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.

Item Type:	Article (Journal)
Additional Information:	7861/63125
Uncontrolled Keywords:	Beyond standard model, Hadron-hadron scattering (experiments)
Subjects:	Q Science > Q Science (General) Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Physics
Depositing User:	Dr Mohd Adli MD Ali
Date Deposited:	30 Aug 2019 14:08
Last Modified:	30 Aug 2019 14:08
URI:	http://irep.iium.edu.my/id/eprint/63125

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