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cc-by (c) Montaña Faiget, Glòria et al., 2020
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/179065

Impact of a thermal medium on D mesons and their chiral partners

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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 D*0(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 D*0(2300).

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MONTAÑA FAIGET, Glòria, et al. Impact of a thermal medium on D mesons and their chiral partners. Physics Letters B. 2020. Vol. 806, num. 135464. ISSN 0370-2693. [consulted: 9 of October of 2026]. Available at: https://hdl.handle.net/2445/179065

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