Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/39861
Título: | Measurement of differential J/psi production cross sections and forward-backward ratios in p plus Pb collisions with the ATLAS detector |
Autor(es): | Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration |
Data: | 2015 |
Editora: | American Physical Society |
Revista: | Physical Review C |
Citação: | Aad, G., Abbott, B., Abdallah, J., Khalek, S. A., Abdinov, O., Aben, R., . . . Collaboration, A. (2015). Measurement of differential J/psi production cross sections and forward-backward ratios in p plus Pb collisions with the ATLAS detector. Physical Review C, 92(3). doi: 10.1103/PhysRevC.92.034904 |
Resumo(s): | Measurements of differential cross sections for J/ψ production in p+Pb collisions at sNN−−−−√=5.02 TeV at the CERN Large Hadron Collider with the ATLAS detector are presented. The data set used corresponds to an integrated luminosity of 28.1 nb−1. The J/ψ mesons are reconstructed in the dimuon decay channel over the transverse momentum range 8<pT<30GeV and over the center-of-mass rapidity range −2.87<y∗<1.94. Prompt J/ψ are separated from J/ψ resulting from b-hadron decays through an analysis of the distance between the J/ψ decay vertex and the event primary vertex. The differential cross section for production of nonprompt J/ψ is compared to a FONLL calculation that does not include nuclear effects. Forward-backward production ratios are presented and compared to theoretical predictions. These results complement previously published results by covering a region of higher transverse momentum and more central rapidity. They thus constrain the kinematic dependence of nuclear modifications of charmonium and b-quark production in p+Pb collisions. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/39861 |
DOI: | 10.1103/PhysRevC.92.034904 |
ISSN: | 0556-2813 |
e-ISSN: | 1089-490X |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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PhysRevC.92.034904.pdf | 1,04 MB | Adobe PDF | Ver/Abrir |