Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1836116 | Nuclear Physics A | 2013 | 14 Pages |
Abstract
The one-loop self-energy of the D and D⁎D⁎ mesons in a hot hadronic medium is evaluated using the real time formalism of thermal field theory. The interaction of the heavy open-charm mesons with the thermalized constituents (π,K,η)(π,K,η) of the hadronic matter is treated in the covariant formalism of heavy meson chiral perturbation theory. The imaginary parts are extracted from the discontinuities of the self-energy function across the unitary and the Landau cuts. The non-zero contribution from the latter to the spectral density of D and D⁎D⁎ mesons opens a number of subthreshold decay channels of the J/ψJ/ψ leading to a significant increase in the dissociation width in hadronic matter.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Sabyasachi Ghosh, Sukanya Mitra, Sourav Sarkar,