Search for Top-Quark Partners with Charge 5/3 in the Same-Sign Dilepton Final State
Name
Chatrchyan-2014-Search for top-quark partners.pdf
Size
322.45 KB
Format
Adobe PDF
Checksum (MD5)
14e6850994a0b026ced4c3173e53f700
Author(s)
Apyan, Aram
Barbieri, Riccardo
Bauer, Gerry P.
Busza, Wit
Cali, Ivan Amos
Chan, M.
Di Matteo, Leonardo
Dutta, V.
Goncharov, Maxim
Gulhan, Doga Can
Date Issued
April 2014
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Search for Top-Quark Partners with Charge 5/3 in the Same-Sign Dilepton Final State.” Physical Review Letters 112, no. 17 (April 2014). © 2014 CERN, for the CMS Collaboration
Version
Final published version
Abstract
A search for the production of heavy partners of the top quark with charge 5/3 is performed in events with a pair of same-sign leptons. The data sample corresponds to an integrated luminosity of 19.5 fb[superscript −1] and was collected at √s = 8 TeV by the CMS experiment. No significant excess is observed in the data above the expected background, and the existence of top-quark partners with masses below 800 GeV is excluded at a 95% confidence level, assuming they decay exclusively to tW. This is the first limit on these particles from the LHC, and it is significantly more restrictive than previous limits.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Massachusetts Institute of Technology. School of Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevLett.112.171801
