English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/140847
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Search for resonant production of high-mass photon pairs in proton-proton collisions at √s=8 and 13 TeV

AuthorsKhachatryan, V.; Cabrillo, I. J. ; Calderon, Alicia ; Castiñeiras De Saa, J. R.; Currás, Esteban ; Fernández, M. ; García-Ferrero, J. ; Gómez, G. ; López Virto, A. ; Marco, Jesús ; Marco, Rafael ; Martínez-Rivero, Celso ; Matorras, Francisco ; Piedra, Jonatan ; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Trevisani, N. ; Vila, Iván ; Vilar, Rocío ; CMS Collaboration
Issue Date2016
PublisherAmerican Physical Society
CitationPhysical Review Letters 117(5): 051802 (2016)
AbstractA search for the resonant production of high-mass photon pairs is presented. The analysis is based on samples of proton-proton collision data collected by the CMS experiment at center-of-mass energies of 8 and 13 TeV, corresponding to integrated luminosities of 19.7 and 3.3 fb-1, respectively. The interpretation of the search results focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4 TeV and with widths, relative to the mass, between 1.4×10-4 and 5.6×10-2. Limits are set on scalar resonances produced through gluon-gluon fusion, and on Randall-Sundrum gravitons. A modest excess of events compatible with a narrow resonance with a mass of about 750 GeV is observed. The local significance of the excess is approximately 3.4 standard deviations. The significance is reduced to 1.6 standard deviations once the effect of searching under multiple signal hypotheses is considered. More data are required to determine the origin of this excess.
Descriptionet al.
Publisher version (URL)https://doi.org/10.1103/PhysRevLett.117.051802
URIhttp://hdl.handle.net/10261/140847
DOI10.1103/PhysRevLett.117.051802
Identifiersdoi: 10.1103/PhysRevLett.117.051802
e-issn: 1079-7114
issn: 0031-9007
Appears in Collections:(IFCA) Artículos
Files in This Item:
File Description SizeFormat 
ResonantProductionHigh-Mass .pdf622,04 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.