| Full text | |
| Author(s): |
Ghosh, Sabyasachi
[1]
Total Authors: 1
|
| Affiliation: | [1] Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS; v. 41, n. 9 SEP 2014. |
| Web of Science Citations: | 4 |
| Abstract | |
In the real-time thermal field theory, the pion self-energy at finite temperature and density is evaluated where the different mesonic and baryonic loops are considered. The interactions of pion with the other mesons and baryons in the medium are governed by the effective hadronic Lagrangian densities whose effective strength of coupling constants have been determined from the experimental decay widths of the mesons and baryons. The detail branch cut structures of these different mesonic and baryonic loops are analyzed. The Landau cut contributions of different baryon and meson loops become only relevant around the pion pole and it is completely appeared in presence of medium. The in-medium spectral function of pion has been plotted for different values of temperature, baryon chemical potential as well as three momentum of the pion. A noticeable low mass probability in pion spectral function promise to contribute in the low mass dilepton enhancement via indirect modification of rho self-energy for pi pi loop. (AU) | |
| FAPESP's process: | 12/16766-0 - Spectral and transport properties of charmed mesons in hot and dense hadronic matter |
| Grantee: | Sabyasachi Ghosh |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |