Measurement of the λb0 lifetime in pp collisions at √s=7 TeV

Chatrchyan, Serguei; Brochero Cifuentes, Javier Andrés; Cabrillo Bartolomé, José Iban; Calderón Tazón, Alicia; Chuang, S. H.; Duarte Campderros, Jorge; Fernández García, Marcos; Gómez Gramuglio, Gervasio; González Sánchez, Francisco Javier; Graziano, Alberto; Jordá Lope, Clara; López Virto, María Amparo; Marco de Lucas, Jesús; Marco de Lucas, Rafael José; Martínez Rivero, Celso; Matorras Weinig, Francisco; Muñoz Sánchez, Francisca Javiela; Rodrigo Anoro, Teresa; Rodríguez Marrero, Ana Yaiza; Ruiz Jimeno, Alberto; Scodellaro, Luca; Vila Álvarez, Iván; Vilar Cortabitarte, Rocío

doi:10.1007/JHEP07(2013)163

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Identificadores

URI: http://hdl.handle.net/10902/25661

DOI: 10.1007/JHEP07(2013)163

ISSN: 1126-6708

ISSN: 1029-8479

Fecha

2013-07

Derechos

Publicado en

Journal of High Energy Physics, 2013, 7, 163

Editorial

Springer Verlag

Enlace a la publicación

https://doi.org/10.1007/JHEP07(2013)163

Palabras clave

Hadron-Hadron Scattering

Resumen/Abstract

A measurement of the Λ0 b lifetime using the decay Λ0 b → J/ψΛ in protonproton collisions at √s = 7 TeV is presented. The data set, corresponding to an integrated luminosity of about 5 fb−1 , was recorded with the CMS experiment at the Large Hadron Collider using triggers that selected dimuon events in the J/ψ mass region. The Λ0b lifetime is measured to be 1.503 ± 0.052 (stat.) ± 0.031 (syst.) ps.

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