Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-11-23
Phys.Lett. B449 (1999) 288-298
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages Latex, 2 figures
Scientific paper
10.1016/S0370-2693(99)00067-2
We extend chiral perturbation theory to study a meson gas out of thermal equilibrium. Assuming that the system is initially in equilibrium below the critical temperature and working within the Schwinger-Keldysh contour technique, we define consistently the time-dependent pion decay functions, the counterparts of the pion decay constants, and calculate them up to next to leading order. The link with curved space-time QFT allows to establish nonequilibrium renormalisation. The short-time behaviour and the applicability to a heavy-ion collision plasma are also discussed in this work.
Galan-Gonzalez Victor
Nicola Angel Gomez
No associations
LandOfFree
Nonequilibrium chiral perturbation theory and pion decay functions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Nonequilibrium chiral perturbation theory and pion decay functions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonequilibrium chiral perturbation theory and pion decay functions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-114572