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dc.contributor.authorKlusek-Gawenda, M.pt_BR
dc.contributor.authorSzczurek, A.pt_BR
dc.contributor.authorMachado, Magno Valério Trindadept_BR
dc.contributor.authorSerbo, V. G.pt_BR
dc.date.accessioned2014-10-04T02:13:46Zpt_BR
dc.date.issued2011pt_BR
dc.identifier.issn0556-2813pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/104186pt_BR
dc.description.abstractThe cross section for exclusive heavy-quark and heavy-antiquark pair (Q¯Q) production in peripheral ultrarelativistic heavy-ion collisions is calculated at an energy available at the CERN Large Hadron Collider, i.e., √ sNN = 5.5 TeV. Here we consider only processes with photon-photon interactions and omit diffractive contributions. We present results in the impact parameter equivalent photon approximation and compare some of them with results obtained by exact calculations of the Feynman diagrams in the momentum space.We include Q¯Q, Q¯Qg, and Q¯Qq¯q final states as well as photon single-resolved components. Realistic charge densities in nuclei were taken in the calculation. The different components give contributions of the same order of magnitude to the nuclear cross section. The cross sections found here are smaller than those for the diffractive photon-Pomeron mechanism and larger than the diffractive Pomeron-Pomeron discussed in the literature.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofPhysical review. C, Nuclear physics. New York. Vol. 83, no. 2 (Feb. 2011), 024903, 7 p.pt_BR
dc.rightsOpen Accessen
dc.subjectFísica nuclearpt_BR
dc.subjectDiagramas de feynmanpt_BR
dc.subjectModelos de quarkspt_BR
dc.subjectNúcleos com número de massa entre 59 e 89pt_BR
dc.titleDouble-photon exclusive processes with heavy-quark–heavy-antiquark pairs in high-energy Pb-Pb collisions at energies available at the CERN Large Hadron Colliderpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000787811pt_BR
dc.type.originEstrangeiropt_BR


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