Search for Narrow Resonances in the $b$-Tagged Dijet Mass Spectrum in Proton-Proton Collisions at $\sqrt{s}=8\text{ }\text{ }\mathrm{TeV}$

Open Access

Search for Narrow Resonances in the $b$ -Tagged Dijet Mass Spectrum in Proton-Proton Collisions at $\sqrt{s} = 8 TeV$

A. M. Sirunyan et al. (CMS Collaboration)

Phys. Rev. Lett. 120, 201801 – Published 14 May 2018

Abstract

A search for narrow resonances decaying to bottom quark-antiquark pairs is presented, using a data sample of proton-proton collisions at $\sqrt{s} = 8 TeV$ 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.

Received 16 February 2018

DOI:https://doi.org/10.1103/PhysRevLett.120.201801

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.