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Search for diphoton resonances in the mass range from 150 to 850 GeV in pp collisions at √s = 8 TeV

Khachatryan, V.; Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V.M.; Hartl, C.; Hörmann, N.; Hrubec, J.; Jeitler, M.; Knünz, V.; König, A.; ... mehr

Abstract:
Results are presented of a search for heavy particles decaying into two photons. The analysis is based on a 19.7fb-1 sample of proton-proton collisions at s=8TeV collected with the CMS detector at the CERN LHC. The diphoton mass spectrum from 150 to 850GeV is used to search for an excess of events over the background. The search is extended to new resonances with natural widths of up to 10% of the mass value. No evidence for new particle production is observed and limits at 95% confidence level on the production cross section times branching fraction to diphotons are determined. These limits are interpreted in terms of two-Higgs-doublet model parameters. © 2015 CERN for the benefit of the CMS Collaboration.

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Volltext §
DOI: 10.5445/IR/1000051123
Originalveröffentlichung
DOI: 10.1016/j.physletb.2015.09.062
Scopus
Zitationen: 101
Web of Science
Zitationen: 120
Coverbild
Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 0370-2693
urn:nbn:de:swb:90-511237
KITopen-ID: 1000051123
Erschienen in Physics Letters B
Band 750
Seiten 494-519
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Nachgewiesen in Scopus
Web of Science
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