Search for a very light CP-Odd Higgs boson in top quark decays from pp¯ collisions at vs=1.96TeV

We present the results of a search for a very light CP-odd Higgs boson a01 originating from top quark decays t?H±b?W±(*)a01b, and subsequently decaying into ?+??. Using a data sample corresponding to an integrated luminosity of 2.7??fb?1 collected by the CDF II detector in p¯p collisions at 1.96 TeV...

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Detalles Bibliográficos
Autores: Aaltonen, Timo Antero, Álvarez González, Bárbara, Casal Laraña, Bruno, Cuevas Maestro, Francisco Javier, Gómez Gramuglio, Gervasio|||0000-0002-1077-6553, Palencia Cortezón, José Enrique, Rodrigo Anoro, Teresa, Ruiz Jimeno, Alberto|||0000-0002-3639-0368, Scodellaro, Luca|||0000-0002-4974-8330, Vila Álvarez, Iván |||0000-0002-6797-7209, Vilar Cortabitarte, Rocío|||0000-0003-2045-8054
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/28553
Acceso en línea:https://hdl.handle.net/10902/28553
Access Level:acceso abierto
Descripción
Sumario:We present the results of a search for a very light CP-odd Higgs boson a01 originating from top quark decays t?H±b?W±(*)a01b, and subsequently decaying into ?+??. Using a data sample corresponding to an integrated luminosity of 2.7??fb?1 collected by the CDF II detector in p¯p collisions at 1.96 TeV, we perform a search for events containing a lepton, three or more jets, and an additional isolated track with transverse momentum in the range 3 to 20??GeV/c. Observed events are consistent with background sources, and 95% C.L. limits are set on the branching ratio of t?H±b for various masses of H± and a01.

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