Measurement of Xc1 and Xc2 production with √s = 7 TeV pp collisions at ATLAS

The prompt and non-prompt production cross-sections for the χc1 and χc2 charmonium states are measured in pp collisions at √s = 7 TeV with the ATLAS detector at the LHC using 4.5 fb−1 of integrated luminosity. The χc states are reconstructed through the radiative decay χc → J/ψ γ (with J/ψ → μ+μ−) w...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín Fernando, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Física
Hadron-Hadron Scattering
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/78408
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-78408
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Hadron-Hadron Scattering
spellingShingle Física
Hadron-Hadron Scattering
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
Measurement of Xc1 and Xc2 production with √s = 7 TeV pp collisions at ATLAS
topic_facet Física
Hadron-Hadron Scattering
description The prompt and non-prompt production cross-sections for the χc1 and χc2 charmonium states are measured in pp collisions at √s = 7 TeV with the ATLAS detector at the LHC using 4.5 fb−1 of integrated luminosity. The χc states are reconstructed through the radiative decay χc → J/ψ γ (with J/ψ → μ+μ−) where photons are reconstructed from γ → e+e− conversions. The production rate of the χc2 state relative to the χc1 state is measured for prompt and non-prompt χc as a function of J/ψ transverse momentum. The prompt χc cross-sections are combined with existing measurements of prompt J/ψ production to derive the fraction of prompt J/ψ produced in feed-down from χc decays. The fractions of χc1 and χc2 produced in b-hadron decays are also measured.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Measurement of Xc1 and Xc2 production with √s = 7 TeV pp collisions at ATLAS
title_short Measurement of Xc1 and Xc2 production with √s = 7 TeV pp collisions at ATLAS
title_full Measurement of Xc1 and Xc2 production with √s = 7 TeV pp collisions at ATLAS
title_fullStr Measurement of Xc1 and Xc2 production with √s = 7 TeV pp collisions at ATLAS
title_full_unstemmed Measurement of Xc1 and Xc2 production with √s = 7 TeV pp collisions at ATLAS
title_sort measurement of xc1 and xc2 production with √s = 7 tev pp collisions at atlas
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/78408
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