Search for New Phenomena in Monophoton Final States in Proton–proton Collisions at √s = 8 TeV
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Author(s)
CMS Collaboration
Apyan, Aram
Barbieri, Richard Alexander
Bauer, Gerry P
Busza, Wit
Cali, Ivan Amos
Di Matteo, Leonardo
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Gulhan, Doga Can
Date Issued
February 2016
Journal
Physics Letters B
Publisher
Elsevier
Citation
Khachatryan, V., A.M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, J. Erö, et al. “Search for New Phenomena in Monophoton Final States in Proton–proton Collisions at √s = 8 TeV.” Physics Letters B 755 (April 2016): 102–124 © 2016 CERN for the benefit of the CMS Collaboration
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Author's final manuscript
Abstract
Results are presented from a search for new physics in final states containing a photon and missing transverse momentum. The data correspond to an integrated luminosity of 19.6 fb ⁻¹ collected in proton–proton collisions at √s = 8 TeV with the CMS experiment at the LHC. No deviation from the standard model predictions is observed for these final states. New, improved limits are set on dark matter production and on parameters of models with large extra dimensions. In particular, the first limits from the LHC on branon production are found and significantly extend previous limits from LEP and the Tevatron. An upper limit of 14.0 fb on the cross section is set at the 95% confidence level for events with a monophoton final state with photon transverse momentum greater than 145 GeV and missing transverse momentum greater than 140 GeV.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1016/J.PHYSLETB.2016.01.057
