Search for a Higgs boson in the decay channel H → ZZ(*) → qq¯¯¯ ℓ − ℓ + in pp collisions at s√=7 TeV

A search for the standard model Higgs boson decaying into two Z bosons with subsequent decay into a final state containing two quark jets and two leptons, H → ZZ(*) → qq¯¯¯q¯ ℓ − ℓ + is presented. Results are based on data corresponding to an integrated luminosity of 4.6 fb−1 of proton-proton collis...

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Detalles Bibliográficos
Autores: Chatrchyan, S., Brochero Cifuentes, Javier Andrés|||0000-0003-2093-7856, Cabrillo Bartolomé, José Iban, Calderón Tazón, Alicia|||0000-0002-7205-2040, Chuang, S. H., Duarte Campderros, Jorge|||0000-0003-0687-5214, Felcini, Marta, Fernández García, Marcos|||0000-0002-4824-1087, Gómez Gramuglio, Gervasio|||0000-0002-1077-6553, González Sánchez, Francisco Javier, Jordá Lope, Clara, Lobelle Pardo, Patricia, López Virto, María Amparo, Marco de Lucas, Jesús|||0000-0001-7914-8494, Marco de Lucas, Rafael José, Martínez Rivero, Celso, Matorras Weinig, Francisco|||0000-0003-4295-5668, Muñoz Sánchez, Francisca Javiela, Rodrigo Anoro, Teresa, Rodríguez Marrero, Ana Yaiza, Ruiz Jimeno, Alberto|||0000-0002-3639-0368, Scodellaro, Luca|||0000-0002-4974-8330, Sobrón Sañudo, Mar, Vila Álvarez, Iván |||0000-0002-6797-7209, Vilar Cortabitarte, Rocío|||0000-0003-2045-8054
Tipo de recurso: artículo
Fecha de publicación:2012
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/28935
Acceso en línea:https://hdl.handle.net/10902/28935
Access Level:acceso abierto
Palabra clave:Hadron-hadron scattering
Descripción
Sumario:A search for the standard model Higgs boson decaying into two Z bosons with subsequent decay into a final state containing two quark jets and two leptons, H → ZZ(*) → qq¯¯¯q¯ ℓ − ℓ + is presented. Results are based on data corresponding to an integrated luminosity of 4.6 fb−1 of proton-proton collisions at s√=7 TeV, collected with the CMS detector at the LHC. In order to discriminate between signal and background events, kinematic and topological quantities, including the angular spin correlations of the decay products, are employed. Events are further classified according to the probability of the jets to originate from quarks of light or heavy flavor or from gluons. No evidence for the Higgs boson is found, and upper limits on its production cross section are determined for a Higgs boson of mass between 130 and 600 GeV.