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

Khachatryan, Vladimir; Brochero Cifuentes, Javier Andrés; Cabrillo Bartolomé, José Iban; Calderón Tazón, Alicia; Castiñeiras de Saa, Juan Ramón; Duarte Campderros, Jorge; Fernández García, Marcos; Gómez Gramuglio, Gervasio; Graziano, Alberto; López Virto, María Amparo; Marco de Lucas, Jesús; Marco de Lucas, Rafael José; Martínez Rivero, Celso; Matorras Weinig, Francisco; Muñoz Sánchez, Francisca Javiela; Piedra Gómez, Jonatan; Rodrigo Anoro, Teresa; Rodríguez Marrero, Ana Yaiza; Ruiz Jimeno, Alberto; Scodellaro, Luca; Vila Álvarez, Iván; Vilar Cortabitarte, Rocío

doi:10.1016/j.physletb.2015.09.062

Ver/Abrir

Search for diphoton ... (1.996Mb)

Identificadores

URI: http://hdl.handle.net/10902/13948

DOI: 10.1016/j.physletb.2015.09.062

ISSN: 0370-2693

ISSN: 1873-2445

; [et al.]

Fecha

2015-11

Derechos

Publicado en

Physics Letters B, Vol. 750, Pp. 494–519, 2015

Editorial

Elsevier

Enlace a la publicación

https://doi.org/10.1016/j.physletb.2015.09.062

Resumen/Abstract

Results are presented of a search for heavy particles decaying into two photons. The analysis is based on a 19.7 fb-1 sample of proton–proton collisions at vs=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.

Colecciones a las que pertenece

D52 Artículos [1337]
D52 Proyectos de investigación [424]

Excepto si se señala otra cosa, la licencia del ítem se describe como Attribution 4.0 International © CERN for the benefit of the CMS collaboration