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

Abstract : Results are presented of a search for heavy particles decaying into two photons. The analysis is based on a 19.7 inverse femtobarn sample of proton-proton collisions at sqrt(s) = 8 TeV collected with the CMS detector at the CERN LHC. The diphoton mass spectrum from 150 to 850 GeV 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.
Type de document :
Article dans une revue
Physics Letters B, Elsevier, 2015, 750, pp.494-519. 〈10.1016/j.physletb.2015.09.062〉

http://hal.in2p3.fr/in2p3-01161723
Contributeur : Sylvie Flores <>
Soumis le : mardi 9 juin 2015 - 07:21:25
Dernière modification le : jeudi 8 février 2018 - 11:06:59

### Citation

V. Khachatryan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Search for diphoton resonances in the mass range from 150 to 850 GeV in pp collisions at sqrt(s) = 8 TeV. Physics Letters B, Elsevier, 2015, 750, pp.494-519. 〈10.1016/j.physletb.2015.09.062〉. 〈in2p3-01161723〉

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