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Campo DC | Valor | Idioma |
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dc.contributor.author | Abreu, Luciano Melo | - |
dc.contributor.author | Cabrera, Daniel | - |
dc.contributor.author | Torres-Rincon, Juan M. | - |
dc.creator | Abreu, Luciano Melo | - |
dc.creator | Cabrera, Daniel | - |
dc.creator | Torres-Rincon, Juan M. | - |
dc.date.accessioned | 2014-03-12T18:36:22Z | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Phys. Rev. D 87, 034019 | pt_BR |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://repositorio.ufba.br/ri/handle/ri/14740 | - |
dc.description.abstract | In this work we evaluate the B-meson drag and diffusion coefficients in a hot medium constituted of light mesons (π, K, K⎯⎯⎯, and η). We treat the B-meson and B*-meson interactions with pseudo-Goldstone bosons in chiral perturbation theory at next-to-leading order within the constraints from heavy quark symmetry and employ standard unitarization techniques of next-to-leading order amplitudes in order to account for dynamically generated resonances (leading to a more efficient heavy-flavor diffusion) and thus reach higher temperatures. We estimate individual meson contributions from the gas to the transport coefficients and perform a comparison with other findings in literature. We report a bottom relaxation length of about 80 fm at a temperature of 150 MeV and for typical momenta of 1 GeV, at which our approach is reliable. Compared to a charm relaxation length of 40 fm in the same conditions, we conclude that the B mesons provide a cleaner probe of the early stages of a heavy-ion collision. | pt_BR |
dc.description.sponsorship | Ministerio de Economıa y Competitividad, Spain; EU Integrated Infrastructure Initiative Hadron Physics Project; CAPES; Centro Nacional de Física de Partículas, Astropartículas y Nuclear (CPAN, Consolider-Ingenio 2010); Ministerio de Educacio´n, Cultura y Deporte, Spain | pt_BR |
dc.language.iso | en | pt_BR |
dc.publisher | American Physical Society | pt_BR |
dc.rights | Acesso Aberto | pt_BR |
dc.source | http://dx.doi.org/10.1103/PhysRevD.87.034019 | pt_BR |
dc.subject | Bottomed mesons | pt_BR |
dc.subject | Heavy-quark effective theory | pt_BR |
dc.title | Transport properties of bottomed mesons in a hot mesonic gas | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.identifier.number | Phys. Rev. D vol. 87, n. 034019 | pt_BR |
dc.embargo.liftdate | 10000-01-01 | - |
Aparece nas coleções: | Artigo Publicado em Periódico (PPGFIS) |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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Abreu.Cabrera.Torres.PhysRevD.87.034019.pdf | 517,9 kB | Adobe PDF | Visualizar/Abrir |
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