Publicação
D mesons at finite temperature and density in the PNJL model
| datacite.subject.fos | Ciências Naturais::Ciências Físicas | |
| datacite.subject.sdg | 03:Saúde de Qualidade | |
| datacite.subject.sdg | 07:Energias Renováveis e Acessíveis | |
| datacite.subject.sdg | 11:Cidades e Comunidades Sustentáveis | |
| dc.contributor.author | Blaschke, D. | |
| dc.contributor.author | Costa, P. | |
| dc.contributor.author | Kalinovsky, Yu. L. | |
| dc.date.accessioned | 2026-02-09T14:42:55Z | |
| dc.date.available | 2026-02-09T14:42:55Z | |
| dc.date.issued | 2012 | |
| dc.description.abstract | We study D-meson resonances in hot, dense quark matter within the NJL model and its Polyakov-loop extension. We show that the mass splitting between D+ and D− mesons is moderate, not in excess of 100 MeV. When the decay channel into quasifree quarks opens (Mott effect) at densities above twice saturation density, the decay width reaches rapidly the value of 200 MeV which entails a spectral broadening sufficient to open J/ dissociation processes. Contrary to results from hadronic mean-field theories, the chiral quark model does not support the scenario of a dropping D-meson masses so that scenarios for J/ dissociation by quark rearrangement built on the lowering of the threshold for this process in a hot and dense medium have to be reconsidered and should account for the spectral broadening. | eng |
| dc.description.sponsorship | The work of Yu.L.K was supported by DFG under grant No. BL 324/3-1 and by the Russian Fund for Basic Research (RFBR) under grant No. 09-01-00770a. D.B. acknowledges partial support from the Polish Ministry of Science and Higher Education (MNiSW) under grant No. NN 202 2318 37 and by RFBR under grant No. 11-0201538-a. The work of P.C. was supported by FCT under Project No. CERN/FP/116356/2010. | |
| dc.identifier.citation | Blaschke, D., Costa, P., & Kalinovsky, Y. L. (2012). D mesons at finite temperature and density in the Polyakov–Nambu–Jona-Lasinio model. Physical Review D—Particles, Fields, Gravitation, and Cosmology, 85(3), 034005. | |
| dc.identifier.doi | https://doi.org/10.1103/PhysRevD.85.034005 | |
| dc.identifier.uri | http://hdl.handle.net/10400.8/15571 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.rights.uri | N/A | |
| dc.title | D mesons at finite temperature and density in the PNJL model | eng |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.title | Physical Review D - Particles, Fields, Gravitation and Cosmology | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| person.familyName | Costa | |
| person.givenName | Pedro | |
| person.identifier.ciencia-id | 5916-434C-C367 | |
| person.identifier.orcid | 0000-0003-4809-6542 | |
| person.identifier.scopus-author-id | 26642948700 | |
| relation.isAuthorOfPublication | 6c1e3356-f60b-47f5-9efc-6b69569b5581 | |
| relation.isAuthorOfPublication.latestForDiscovery | 6c1e3356-f60b-47f5-9efc-6b69569b5581 |