Search for W′ → tb in proton-proton collisions at √s = 8 TeV
Name
Khachatryan2016_Article_SearchForWTbInProton-protonCol.pdf
Size
1.51 MB
Format
Adobe PDF
Checksum (MD5)
0ceacfc1d9291fbd80f8fd5f41d5399e
Author(s)
Apyan, Aram
Barbieri, Richard Alexander
Baty, Austin Alan
Bierwagen, Katharina
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
Di Matteo, Leonardo
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Date Issued
February 2016
Journal
Journal of High Energy Physics
Publisher
Springer Nature
Citation
The CMS collaboration, et al. “Search for W′ → Tb in Proton-Proton Collisions at √s = TeV.” Journal of High Energy Physics, vol. 2016, no. 2, Feb. 2016. © 2016 The Authors
Version
Final published version
Abstract
A search is performed for the production of a massive W′ boson decaying to a top and a bottom quark. The data analysed correspond to an integrated luminosity of 19.7 fb[superscript −1] collected with the CMS detector at the LHC in proton-proton collisions at √s = 8 TeV. The hadronic decay products of the top quark with high Lorentz boost from the W′ boson decay are detected as a single top flavoured jet. The use of jet substructure algorithms allows the top quark jet to be distinguished from standard model QCD background. Limits on the production cross section of a right-handed W′ boson are obtained, together with constraints on the left-handed and right-handed couplings of the W′ boson to quarks. The production of a right-handed W′ boson with a mass below 2.02 TeV decaying to a hadronic final state is excluded at 95% confidence level. This mass limit increases to 2.15 TeV when both hadronic and leptonic decays are considered, and is the most stringent lower mass limit to date in the tb decay mode. Keywords:
Jet substructure, Hadron-Hadron scattering, Beyond Standard Model
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/10.1007/JHEP02(2016)122
