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Title

Search for Higgs boson pair production in the γγbb‾ final state in pp collisions at s=13TeV

AuthorsBrochero Cifuentes, J. A. ; Cabrillo, I. J. ; Calderon, Alicia ; Chazin Quero, B.; Duarte Campderros, J. ; Fernandez, M.; Fernández Manteca, P. J.; García Alonso, A.; García-Ferrero, J. ; Gómez, G. ; López Virto, A. ; Marco, Jesús ; Martínez-Rivero, Celso ; Martínez Ruiz del Arbol, P. ; Matorras, Francisco ; Piedra, Jonatan ; Prieels, C.; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Trevisani, N. ; Vila, Iván ; Vilar Cortabitarte, R.
KeywordsCMS
Physics
Higgs
Photons
b-Jets
Issue Date10-Jan-2019
PublisherElsevier
CitationPhysics Letters B 788: 7-36 (2019)
AbstractA search is presented for the production of a pair of Higgs bosons, where one decays into two photons and the other one into a bottom quark–antiquark pair. The analysis is performed using proton–proton collision data at s=13TeV recorded in 2016 by the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9fb. The results are in agreement with standard model (SM) predictions. In a search for resonant production, upper limits are set on the cross section for new spin-0 or spin-2 particles. For the SM-like nonresonant production hypothesis, the data exclude a product of cross section and branching fraction larger than 2.0fb at 95% confidence level (CL), corresponding to about 24 times the SM prediction. Values of the effective Higgs boson self-coupling κ are constrained to be within the range −11<κ<17 at 95% CL, assuming all other Higgs boson couplings are at their SM value. The constraints on κ are the most restrictive to date.
Publisher version (URL)http://dx.doi.org/10.1016/j.physletb.2018.10.056
URIhttp://hdl.handle.net/10261/213201
DOIhttp://dx.doi.org/10.1016/j.physletb.2018.10.056
Identifiersdoi: 10.1016/j.physletb.2018.10.056
issn: 0370-2693
e-issn: 1873-2445
Appears in Collections:(IFCA) Artículos
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