He, Li-Ping and Braaten, Eric and Bruschini, Roberto and Ingles, Kevin and Jiang, Jun (2024) Charm meson and charm-meson molecule in an expanding hadron gas. Il nuovo cimento C, 47 (4). pp. 1-5. ISSN 1826-9885
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Abstract
We present our studies on the evolution of charm mesons after the kinetic freeze-out of the expanding hadron gas produced in a heavy-ion collision and the thermal correction to a loosely bound charm-meson molecule in a pion gas. The πD∗ → πD∗ reaction rates have t-channel singularities that give contributions inversely proportional to the thermal width of the D. The ratio of the D0 and D+ production rate can differ significantly from those predicted using the measured D∗ branching fractions. The thermal correction to a loosely bound charm-meson molecule in a pion gas comes primarily from the complex thermal energy shift of the charm-meson constituents.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 11 Sep 2024 15:26 |
| Last Modified: | 11 Sep 2024 15:26 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23124 |
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