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Combined search for anomalous pseudoscalar HVV couplings in VH(H→bb‾) production and H → VV decay

AutorKhachatryan, V.; Cabrillo, I. J. ; Calderon, Alicia ; Castiñeiras De Saa, J. R.; Castro Manzano, P. de; Fernández, M. ; García-Ferrero, J. ; Gómez, G. ; López Virto, A. ; Marco, Jesús ; Marco, Rafael ; Martínez-Rivero, Celso ; Matorras, Francisco ; Piedra, Jonatan ; Rodrigo, Teresa ; Rodríguez Marrero, Ana Y. ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Trevisani, N. ; Vila, Iván ; Vilar, Rocío
Fecha de publicación2016
EditorElsevier
CitaciónPhysics Letters B 759: 672-696 (2016)
ResumenA search for anomalous pseudoscalar couplings of the Higgs boson H to electroweak vector bosons V (=W or Z) in a sample of proton–proton collision events corresponding to an integrated luminosity of 18.9 fb−1 at a center-of-mass energy of 8 TeV is presented. Events consistent with the topology of associated VH production, where the Higgs boson decays to a pair of bottom quarks and the vector boson decays leptonically, are analyzed. The consistency of data with a potential pseudoscalar contribution to the HVV interaction, expressed by the effective pseudoscalar cross section fractions fa3, is assessed by means of profile likelihood scans. Results are given for the VH channels alone and for a combined analysis of the VH and previously published H→VV channels. Under certain assumptions, f >0.0034 is excluded at 95% confidence level in the combination. Scenarios in which these assumptions are relaxed are also considered.
DescripciónOpen Access funded by SCOAP³ - Sponsoring Consortium for Open Access Publishing in Particle Physics.-- CMS Collaboration: et al.
Versión del editorhttp://dx.doi.org/10.1016/j.physletb.2016.06.004
URIhttp://hdl.handle.net/10261/140457
Identificadoresdoi: 10.1016/j.physletb.2016.06.004
issn: 0370-2693
e-issn: 1873-2445
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