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Abstract:

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.

Registro:

Documento: Artículo
Título:Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS
Autor:Aad, G. et al.
Este artículo contiene 2933 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2933 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Hadron-hadron scattering
Año:2014
Volumen:2014
Número:7
DOI: http://dx.doi.org/10.1007/JHEP07(2014)154
Título revista:Journal of High Energy Physics
Título revista abreviado:J. High Energy Phys.
ISSN:11266708
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2014_n7_p_Aad

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Citas:

---------- APA ----------
(2014) . Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS. Journal of High Energy Physics, 2014(7).
http://dx.doi.org/10.1007/JHEP07(2014)154
---------- CHICAGO ----------
Aad, G. "Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS" . Journal of High Energy Physics 2014, no. 7 (2014).
http://dx.doi.org/10.1007/JHEP07(2014)154
---------- MLA ----------
Aad, G. "Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS" . Journal of High Energy Physics, vol. 2014, no. 7, 2014.
http://dx.doi.org/10.1007/JHEP07(2014)154
---------- VANCOUVER ----------
Aad, G. Measurement of χ c1 and χ c2 production with √s = 7 TeV pp collisions at ATLAS. J. High Energy Phys. 2014;2014(7).
http://dx.doi.org/10.1007/JHEP07(2014)154