Search for supersymmetry in proton-proton collisions at 13 TeV using identified top quarks
Name
PhysRevD.97.012007.pdf
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1.46 MB
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Author(s)
CMS Collaboration
Abercrombie, Daniel Robert
Allen, Brandon Leigh
Azzolini, Virginia
Barbieri, Richard Alexander
Baty, Austin Alan
Bi, Ran
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
Date Issued
January 2018
Journal
Physical Review D
Publisher
American Physical Society
Citation
Sirunyan, A. M., et al. “Search for Supersymmetry in Proton-Proton Collisions at 13 TeV Using Identified Top Quarks.” Physical Review D 97, 1 (January 2018): 012007 © 2018 CERN, for the CMS Collaboration
Version
Final published version
Abstract
A search for supersymmetry is presented based on proton-proton collision events containing identified hadronically decaying top quarks, no leptons, and an imbalance p [superscript miss] [subscript T] in transverse momentum. The data were collected with the CMS detector at the CERN LHC at a center-of-mass energy of 13 TeV, and correspond to an integrated luminosity of 35.9 fb [superscript −1]. Search regions are defined in terms of the multiplicity of bottom quark jet and top quark candidates, the pmissT, the scalar sum of jet transverse momenta, and the m[subscript T2] mass variable. No statistically significant excess of events is observed relative to the expectation from the standard model. Lower limits on the masses of supersymmetric particles are determined at 95% confidence level in the context of simplified models with top quark production. For a model with direct top squark pair production followed by the decay of each top squark to a top quark and a neutralino, top squark masses up to 1020 GeV and neutralino masses up to 430 GeV are excluded. For a model with pair production of gluinos followed by the decay of each gluino to a top quark-antiquark pair and a neutralino, gluino masses up to 2040 GeV and neutralino masses up to 1150 GeV are excluded. These limits extend previous results.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.97.012007
