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Search for supersymmetry in pp collisions at $s$=8 TeV in events with a single lepton, large jet multiplicity, and multiple b jets

Search for supersymmetry in pp collisions at $s$=8 TeV in events with a single lepton, large jet multiplicity, and multiple b jets
Search for supersymmetry in pp collisions at $s$=8 TeV in events with a single lepton, large jet multiplicity, and multiple b jets
Results are reported from a search for supersymmetry in
pp
collisions at a center-of-mass energy of 8 TeV, based on events with a single isolated lepton (electron or muon) and multiple jets, at least two of which are identified as b jets. The data sample corresponds to an integrated luminosity of 19.3 fb−1recorded by the CMS experiment at the LHC in 2012. The search is motivated by supersymmetric models that involve strong-production processes and cascade decays of new particles. The resulting final states contain multiple jets as well as missing transverse momentum from weakly interacting particles. The event yields, observed across several kinematic regions, are consistent with the expectations from standard model processes. The results are interpreted in the context of simplified supersymmetric scenarios with pair production of gluinos, where each gluino decays to a top quark–antiquark pair and the lightest neutralino. For the case of decays via virtual top squarks, gluinos with a mass smaller than 1.26 TeV are excluded for low neutralino masses.
0370-2693
328-353
Chatrchyan, Serguei
23ce6af5-bdd2-435c-92c8-9b1b71a261ee
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
The CMS Collaboration
Chatrchyan, Serguei
23ce6af5-bdd2-435c-92c8-9b1b71a261ee
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

The CMS Collaboration (2014) Search for supersymmetry in pp collisions at $s$=8 TeV in events with a single lepton, large jet multiplicity, and multiple b jets. Physics Letters B, B733, 328-353. (doi:10.1016/j.physletb.2014.04.023).

Record type: Article

Abstract

Results are reported from a search for supersymmetry in
pp
collisions at a center-of-mass energy of 8 TeV, based on events with a single isolated lepton (electron or muon) and multiple jets, at least two of which are identified as b jets. The data sample corresponds to an integrated luminosity of 19.3 fb−1recorded by the CMS experiment at the LHC in 2012. The search is motivated by supersymmetric models that involve strong-production processes and cascade decays of new particles. The resulting final states contain multiple jets as well as missing transverse momentum from weakly interacting particles. The event yields, observed across several kinematic regions, are consistent with the expectations from standard model processes. The results are interpreted in the context of simplified supersymmetric scenarios with pair production of gluinos, where each gluino decays to a top quark–antiquark pair and the lightest neutralino. For the case of decays via virtual top squarks, gluinos with a mass smaller than 1.26 TeV are excluded for low neutralino masses.

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Published date: 2014

Identifiers

Local EPrints ID: 412370
URI: http://eprints.soton.ac.uk/id/eprint/412370
ISSN: 0370-2693
PURE UUID: 31f3c644-efed-4012-8dff-9e2fe3ad2590
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 17 Jul 2017 13:33
Last modified: 05 Nov 2019 01:46

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Contributors

Author: Serguei Chatrchyan
Corporate Author: The CMS Collaboration

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