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Report number arXiv:1311.5357 ; CMS-B2G-12-014 ; CERN-PH-EP-2013-206 ; CMS-B2G-12-014 ; CERN-PH-EP-2013-206
Title Search for pair production of excited top quarks in the lepton+jets final state
Author(s) CMS Collaboration  Vis alle 2221 forfattere
Publication 2014-06-19
Imprint 21 Nov 2013
Number of pages 35
Note Comments: Replaced with published version. Added journal reference and DOI
Replaced with published version. Added journal reference and DOI
In: JHEP 06 (2014) 125
DOI 10.1007/JHEP06(2014)125
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; CMS
Free keywords exotics
Abstract A search is performed for pair-produced spin-3/2 excited top quarks (tˉt), each decaying to a top quark and a gluon. The search uses data collected with the CMS detector from pp collisions at a center-of-mass energy of s=8 TeV, selecting events that have a single isolated muon or electron, an imbalance in transverse momentum, and at least six jets, of which one must be compatible with originating from the fragmentation of a b quark. The data, corresponding to an integrated luminosity of 19.5 inverse femtobarns, show no significant excess over standard model predictions, and provide a lower limit of 803 GeV at 95% confidence on the mass of the spin-3/2 t* quark in an extension of the Randall-Sundrum model, assuming a 100% branching fraction of its decay into a top quark and a gluon. This is the first search for a spin-3/2 excited top quark performed at the LHC.
Related document supersedes: CMS-PAS-B2G-12-014
Copyright/License preprint: © 2013-2025 CERN (License: CC-BY-3.0)
publication: © 2014-2025 CERN (License: CC-BY-4.0), sponsored by SCOAP³



Corresponding record in: Inspire
Email contact: cms-publication-committee-chair@cern.ch


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