☆ 4.5 Article

Open-charm mesons in nuclear matter at finite temperature beyond the zero-range approximation

PHYSICAL REVIEW C (2011)

期刊

PHYSICAL REVIEW C

卷 84, 期 1, 页码 -

出版社

AMER PHYSICAL SOC

DOI: 10.1103/PhysRevC.84.015208

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-

类别

Physics, Nuclear

资金

EU [MRTN-CT-2006-035482]
MIC (Spain) [FIS2008-01661]
Generalitat de Catalunya [2009SGR-1289]
FEDER/FCT (Portugal) [PTDC/FIS/113292/2009, CERN/FP/116366/2010]
European Community [227431]
University of Groningen (the Netherlands)
Helmholtz International Center for FAIR within the State of Hesse (Germany)
Fundação para a Ciência e a Tecnologia [CERN/FP/116366/2010] Funding Source: FCT

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摘要

The properties of open charm mesons, D, <(D)over bar, D-s, and <(D)over bar>(s) in nuclear matter at finite temperature are studied within a self-consistent coupled-channel approach. The interaction of the low-lying pseudoscalar mesons with the ground-state baryons in the charm sector is derived from a t-channel vector-exchange model. The in-medium scattering amplitudes are obtained by solving the Lippmann-Schwinger equation at finite temperature including Pauli blocking effects, baryon dressing, as well as D, (D) over bar, D-s, and (D) over bar (s) self-energies taking their mutual influence into account. We find that the in-medium properties of the D meson are affected by the D-s-meson self-energy through the intermediate DsY loops coupled to DN states. Similarly, dressing the (D) over bar meson in the (D) over barY loops has an influence over the properties of the (D) over bar (s) meson.

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