2013/08/31 by Sabyasachi Ghosh, Sukanya Mitra, Sourav Sarkar
Physics and Astronomy · #Covariant transformation #Formalism (music) #Hadron #High-Energy Particle Collisions Research #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #hep-ph #nucl-th
paper · pdf · doi:10.1016/j.nuclphysa.2013.08.010
To be Published in NPA
arxiv created 2013/08/31 · openalex publication_date 2013/09/07 · arxiv updated 2015/06/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The one-loop self-energy of the D and 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) 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^* mesons opens a number of subthreshold decay channels of the J/ψ leading to a significant increase in the dissociation width in hadronic matter.