Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10400.26/26099
Título: | Search for pair production of a heavy up-type quark decaying to a W boson and a b quark in the lepton+jets channel with the ATLAS detector |
Autor: | ATLAS collaboration (3034 authors) Aguilar-Saavedra, Juan Antonio Amaral, Pedro Anjos, Nuno Carvalho, João Castro, Nuno Filipe Conde Muiño, Patricia Do Valle Wemans, André Fiolhais, Miguel Gomes, Agostinho Gonçalo, Ricardo Jorge, Pedro Lopes, Lourenco Machado Miguens, Joana Maio, Amélia Maneira, José Oliveira, Miguel Alfonso Onofre, António Palma, Alberto Pina, João Antonio Pinto, Belmiro Santos, Helena Saraiva, João Silva, José Soares, Mara Veloso, Filipe Wolters, Helmut |
Data: | Fev-2012 |
Resumo: | A search is presented for production of a heavy up-type quark (t') together with its antiparticle, assuming subsequent decay to a W boson and a b quark, t't'bar -> W+b W-bbar. The search is based on 1.04 fb^-1 of proton-proton collisions at sqrt(s) = 7 TeV collected by the ATLAS detector at the CERN Large Hadron Collider. Data are analyzed in the lepton+jets final state, characterized by a high transverse momentum isolated electron or muon, high missing transverse momentum and at least three jets. No significant excess of events above the background expectation is observed. A 95% C.L. lower limit is set at m(t') > 404 GeV. |
URI: | http://dx.doi.org/10.1103/PhysRevLett.108.261802 http://hdl.handle.net/10400.26/26099 |
Aparece nas colecções: | LIP - AP - Física de Partículas e Astropartículas |
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