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Título:
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Heavy flavor relaxation in a hadronic medium
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Autores:
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Llanes Estrada, Felipe José ;
Torres Rincón, Juan Miguel ;
Cabrera Urban, Daniel ;
Abreu, Luciano M
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier Science BV, 2013-09-20
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física
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Tipo = Artículo
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Resumen:
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Charm and bottom transport coefficients in a medium constituted of light mesons, such as is formed in the hadronic phase of heavy-ion collisions, are obtained within an effective field theory approach implementing heavy-quark symmetry and chiral symmetry breaking. Heavy flavor propagates in the medium as D/B and D?/B? degrees of freedom, and unitarization of the lowest order heavy–light meson amplitudes is used in order to reach high temperatures. The latter accounts for dynamically generated resonances in isospin ½ channels, a feature that leads to a more efficient heavy-flavor diffusion. We discuss the temperature and momentum dependence of the friction and diffusion coefficients in a transport approach up to temperature of about T 150 MeV, and provide estimates of the charm/bottom relaxation lengths and momentum loss. Implications for heavy-meson spectrum observables in heavy ion collisions are discussed.
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En línea:
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https://eprints.ucm.es/id/eprint/23864/1/Llanes-Estrada_FJ78.pdf
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