Search for narrow high-mass resonances in proton–proton collisions at √s = 8 TeV decaying to a Z and a Higgs boson
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Khachatryan-2015-Search for narrow hi.pdf
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Author(s)
Apyan, Aram
Barbieri, Richard Alexander
Bierwagen, Katharina
Busza, Wit
Cali, Ivan Amos
Di Matteo, Leonardo
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Gulhan, Doga Can
Klute, Markus
Date Issued
July 2015
Journal
Physics Letters B
Publisher
Elsevier
Citation
“Search for Narrow High-Mass Resonances in Proton–proton Collisions at √s = 8 TeV Decaying to a Z and a Higgs Boson.” Physics Letters B 748 (September 2015): 255–277. © 2015 CERN for the benefit of the CMS Collaboration
Version
Final published version
Abstract
A search for a narrow, high-mass resonance decaying into Z and Higgs (H) bosons is presented. The final state studied consists of a merged jet pair and a τ pair resulting from the decays of Z and H bosons, respectively. The analysis is based on a data sample of proton–proton collisions at a center-of-mass energy of 8 TeV, collected with the CMS experiment in 2012, and corresponding to an integrated luminosity of 19.7 fb[superscript −1]. In the resonance mass range of interest, which extends from 0.8 to 2.5 TeV, the Z and H bosons are produced with large momenta, which implies that the final products of the two quarks or the two τ leptons must be detected within a small angular interval. From a combination of all possible decay modes of the τ leptons, production cross sections in a range between 0.9 and 27.8 fb are excluded at 95% confidence level, depending on the resonance mass.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Massachusetts Institute of Technology. School of Science
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DOI of Published Version
https://doi.org/10.1016/j.physletb.2015.07.011
