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

Abstract: A 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, fa3 ZZ>0.0034 is excluded at 95% confidence level in the combination. Scenarios in which these assumptions are relaxed are also considered.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Physics Letters B, Vol.759, Pp. 672?696 (2016)

Editorial: Elsevier

 Fecha de publicación: 01/08/2016

Nº de páginas: 25

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.physletb.2016.06.004

ISSN: 0370-2693,1873-2445

Url de la publicación: https://doi.org/10.1016/j.physletb.2016.06.004

Autores/as

JUAN RAMON CASTIÑEIRAS DE SAA

PABLO DE CASTRO MANZANO

JUAN GARCIA FERRERO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

ANA YAIZA RODRIGUEZ MARRERO

KHACHATRYAN, VLADIMIR