Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS

The prompt and non-prompt production cross-sections for the χ c1 and χ c2 charmonium states are measured in pp collisions at √s = 7TeV with the ATLAS detector at the LHC using 4.5 fb −1 of integrated luminosity. The χ c states are reconstructed through the radiative decay χ c → J/ψγ (with J/ψ → μ +...

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Guardado en:
Detalles Bibliográficos
Publicado: 2014
Materias:
Hadron-hadron scattering
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2014_n7_p_Aad
http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n7_p_Aad
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_11266708_v2014_n7_p_Aad
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spelling paper:paper_11266708_v2014_n7_p_Aad2023-06-08T16:08:33Z Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS Hadron-hadron scattering The prompt and non-prompt production cross-sections for the χ c1 and χ c2 charmonium states are measured in pp collisions at √s = 7TeV with the ATLAS detector at the LHC using 4.5 fb −1 of integrated luminosity. The χ c states are reconstructed through the radiative decay χ c → J/ψγ (with J/ψ → μ + μ − ) where photons are reconstructed from γ → e+e− conversions. The production rate of the χ c2 state relative to the χ c1 state is measured for prompt and non-prompt χ c as a function of J/ψ transverse momentum. The prompt χ c 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 χ c decays. The fractions of χ c1 and χ c2 produced in b-hadron decays are also measured. © 2014 Springer Verlag. All rights reserved. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2014_n7_p_Aad http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n7_p_Aad
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Hadron-hadron scattering
spellingShingle Hadron-hadron scattering
Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS
topic_facet Hadron-hadron scattering
description The prompt and non-prompt production cross-sections for the χ c1 and χ c2 charmonium states are measured in pp collisions at √s = 7TeV with the ATLAS detector at the LHC using 4.5 fb −1 of integrated luminosity. The χ c states are reconstructed through the radiative decay χ c → J/ψγ (with J/ψ → μ + μ − ) where photons are reconstructed from γ → e+e− conversions. The production rate of the χ c2 state relative to the χ c1 state is measured for prompt and non-prompt χ c as a function of J/ψ transverse momentum. The prompt χ c 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 χ c decays. The fractions of χ c1 and χ c2 produced in b-hadron decays are also measured. © 2014 Springer Verlag. All rights reserved.
title Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS
title_short Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS
title_full Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS
title_fullStr Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS
title_full_unstemmed Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS
title_sort measurement of χ c1 and χ c2 production with √s = 7 tev pp collisions at atlas
publishDate 2014
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2014_n7_p_Aad
http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n7_p_Aad
_version_ 1768543146555211776

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