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Search for the associated production of the Higgs boson with a top-quark pair

Abstract: A search for the standard model Higgs boson produced in association with a top-quark pair (tt¯H) is presented, using data samples corresponding to integrated luminosities of up to 5.1 fb-1 and 19.7 fb-1 collected in pp collisions at center-of-mass energies of 7 TeV and 8 TeV respectively. The search is based on the following signatures of the Higgs boson decay: H ? hadrons, H ? photons, and H ? leptons. The results are characterized by an observed tt¯H signal strength relative to the standard model cross section, µ=s/sSM,under the assumption that the Higgs boson decays as expected in the standard model. The best fit value is µ = 2.8 ± 1.0 for a Higgs boson mass of 125.6 GeV.

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

 Fuente: Journal of High Energy Physics, Vol. 2014, Num. 9, Art. Num. 87

Editorial: Springer Verlag

 Fecha de publicación: 01/09/2014

Nº de páginas: 64

Tipo de publicación: Artículo de Revista

 DOI: 10.1007/JHEP09(2014)087

ISSN: 1126-6708,1029-8479

 Proyecto español: FPA2014-55295-C3-1-R ; FPA 2011-28694-C02-01

Url de la publicación: https://doi.org/10.1007/JHEP09(2014)087

Autoría

KHACHATRYAN, VLADIMIR

JAVIER ANDRES BROCHERO CIFUENTES

MARCOS FERNANDEZ GARCIA

ALBERTO GRAZIANO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

FRANCISCA JAVIELA MUÑOZ SANCHEZ

ANA YAIZA RODRIGUEZ MARRERO