Measurement of jet substructure observables in t t events from proton-proton collisions at s =13 TeV measurement of jet substructure observables

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Measurement of jet substructure observables in t t events from proton-proton collisions at s =13 TeV measurement of jet substructure observables. Physical Review D, 98 (9). pp. 1-36. ISSN 2470-0010 E-ISSN 2470-0029

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Abstract

A measurement of jet substructure observables is presented using t¯t events in the lepton þ jets channel from proton-proton collisions at ffiffi s p ¼ 13 TeV recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb−1. Multiple jet substructure observables are measured for jets identified as bottom, light-quark, and gluon jets, as well as for inclusive jets (no flavor information). The results are unfolded to the particle level and compared to next-to-leading-order predictions from POWHEG interfaced with the parton shower generators PYTHIA 8 and HERWIG 7, as well as from SHERPA 2 and DIRE 2. A value of the strong coupling at the Z boson mass, αSðmZÞ ¼ 0.115þ0.015 −0.013 , is extracted from the substructure data at leading-order plus leading-log accuracy

Item Type:	Article (Journal)
Additional Information:	7861/69687
Uncontrolled Keywords:	Measurement of jet substructure; TT events; proton-proton collisions a
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:	15 Jan 2019 09:40
Last Modified:	15 Jul 2019 09:52
URI:	http://irep.iium.edu.my/id/eprint/69687

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