Search for narrow resonances in the b -tagged dijet mass spectrum in proton-proton collisions at s =8 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Search for narrow resonances in the b -tagged dijet mass spectrum in proton-proton collisions at s =8 TeV. Physical Review Letters, 120 (20). pp. 201801-1. ISSN 0031-9007 E-ISSN 1079-7114

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Abstract

A search for narrow resonances decaying to bottom quark-antiquark pairs is presented, using a data sample of proton-proton collisions at ffiffi s p ¼ 8 TeV corresponding to an integrated luminosity of 19.7 fb−1. The search is extended to masses lower than those reached in typical searches for resonances decaying into jet pairs at the LHC, by taking advantage of triggers that identify jets originating from bottom quarks. No significant excess of events is observed above the background predictions. Limits are set on the product of cross section and branching fraction to bottom quarks for spin 0, 1, and 2 resonances in the mass range of 325–1200 GeV. These results improve on the limits for resonances decaying into jet pairs in the 325–500 GeV mass range.

Item Type:	Article (Journal)
Additional Information:	7861/65686
Uncontrolled Keywords:	Narrow Resonances; b-Tagged Dijet Mass Spectrum; Proton-Proton Collisions; ffiffi s p = 8 TeV
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:	14 Aug 2018 11:29
Last Modified:	24 Jan 2019 16:01
URI:	http://irep.iium.edu.my/id/eprint/65686

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