Speaker
Prof.
Grzegorz Wilk
(The Andrzej Soltan Institute for Nuclear Studies)
Description
The critical phenomena in strongly interaction matter are generally investigated
using the mean-field model and are characterized by well defined
critical exponents. However, such models provide only average properties
of the corresponding order parameters and neglect altogether their possible
fluctuations. Also the possible long range effect are neglected in the mean
field approach. Here we investigate the critical behavior in the nonextensive
version of the Nambu–Jona-Lasinio model (NJL). It allows to account for
such effects in a phenomenological way by means of a single parameter q,
the nonextensivity parameter. In particular, we show how the nonextensive
statistics influence the region of the critical temperature and chemical
potential in the NJL mean field approach.
Primary authors
Prof.
Grzegorz Wilk
(The Andrzej Soltan Institute for Nuclear Studies)
Dr
Jacek Rozynek
(The Andrzej Soltan Institute for Nuclear Studies)
