TY  - INPR
A1  - Gao, Song
A1  - Gale, Charles
A1  - Ernst, Christoph
A1  - Stöcker, Horst
A1  - Greiner, Walter
T1  - Rho meson broadening in hot and dense hadronic matter
N2  - The modification of the width of rho mesons due to in-medium decays and collisions is evaluated. The decay width is calculated from the imaginary part of the one-loop selfenergy at finite temperature. The collision width is related to the cross sections of the rho + pion and the rho + nucleon reactions. A calculation based on an e ective Lagrangian shows the importance of including the direct pho pi - > pho pi scattering which is dominated by the a1 exchange. A large broadening of the spectral function is found, accompanied by a strength suppression at the pole. http://www.arxiv.org/abs/nucl-th/9812059
KW  - Rho-Meson
KW  - Verbreitung
KW  - In-Medium Zerfall
KW  - rho meson
KW  - broadening
KW  - in-medium decay
Y1  - 2005
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3112
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-22884
ER  -