Search for direct pair production of supersymmetric top quarks decaying to all-hadronic final states in pp collisions at √s = 8 TeV s = 8 TeV
Name
Khachatryan2016_Article_SearchForDirectPairProductionO.pdf
Description
Published version
Size
2.3 MB
Format
Adobe PDF
Checksum (MD5)
72869d60810829e8d5df9bdd08b5fba2
Author(s)
The CMS Collaboration
Date Issued
2016
Journal
The European Physical Journal C - Particles and Fields
Publisher
Springer Science and Business Media LLC
Version
Final published version
Abstract
© 2016, CERN for the benefit of the CMS collaboration. Results are reported from a search for the pair production of top squarks, the supersymmetric partners of top quarks, in final states with jets and missing transverse momentum. The data sample used in this search was collected by the CMS detector and corresponds to an integrated luminosity of 18.9fb-1 of proton-proton collisions at a centre-of-mass energy of 8TeV produced by the LHC. The search features novel background suppression and prediction methods, including a dedicated top quark pair reconstruction algorithm. The data are found to be in agreement with the predicted backgrounds. Exclusion limits are set in simplified supersymmetry models with the top squark decaying to jets and an undetected neutralino, either through a top quark or through a bottom quark and chargino. Models with the top squark decaying via a top quark are excluded for top squark masses up to 755GeV in the case of neutralino masses below 200GeV. For decays via a chargino, top squark masses up to 620GeV are excluded, depending on the masses of the chargino and neutralino.
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
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/EPJC/S10052-016-4292-5
