期刊论文详细信息
Physics Letters B | |
Impact of a thermal medium on D mesons and their chiral partners | |
Juan M. Torres-Rincon1  Àngels Ramos2  Glòria Montaña2  Laura Tolós3  | |
[1]Frankfurt Institute for Advanced Studies, Ruth-Moufang-Str. 1, 60438 Frankfurt am Main, Germany | |
[2]Departament de Física Quàntica i Astrofísica and Institut de Ciències del Cosmos (ICCUB), Facultat de Física, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain | |
[3]Institut für Theoretische Physik, Goethe Universität Frankfurt, Max von Laue Strasse 1, 60438 Frankfurt, Germany | |
关键词: Charmed mesons; Effective hadron theories; Finite-temperature QFT; Chiral symmetry; Heavy-quark symmetry; Chiral symmetry restoration; | |
DOI : | |
来源: DOAJ |
【 摘 要 】
We study D and Ds mesons at finite temperature using an effective field theory based on chiral and heavy-quark spin-flavor symmetries within the imaginary-time formalism. Interactions with the light degrees of freedom are unitarized via a Bethe-Salpeter approach, and the D and Ds self-energies are calculated self-consistently. We generate dynamically the D0⁎(2300) and Ds(2317) states, and study their possible identification as the chiral partners of the D and Ds ground states, respectively. We show the evolution of their masses and decay widths as functions of temperature, and provide an analysis of the chiral-symmetry restoration in the heavy-flavor sector below the transition temperature. In particular, we analyse the very special case of the D-meson, for which the chiral partner is associated to the double-pole structure of the D0⁎(2300).【 授权许可】
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