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|Title: ||Heavy flavor relaxation in a hadronic medium|
|Authors: ||Cabrera, Daniel|
Abreu, Luciano Melo
Llanes-Estrada, Felipe J.
Torres-Rincon, Juan M.
|Keywords: ||Charmed and bottomed mesons;Heavy-quark effective theory;Diffusion coefficient|
|Issue Date: ||2013|
|Citation: ||Daniel Cabrera, Luciano M. Abreu, Felipe J. Llanes-Estrada, Juan M. Torres-Rincon, Nucl. Phys. A 914, 505 (2013)|
|Abstract: ||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 1/2
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 temperatures
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.|
|Appears in Collections:||Artigos Publicados em Periódicos (PPGFIS)|
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