Eur. Phys. J. A 12, 41-49 (2001)
Nucleons and isobars at finite density (
) and temperature (T)
R. Cenni1, J. Dey2 and M. Dey3
1 INFN, Sezione di Genova and Dipartimento di Fisica, Università di Genova, via Dodecaneso, 33-16146 Genova, Italy
2 Abdus Salam ICTP, Trieste, Italy and Azad Physics Centre, Department of Physics, Maulana Azad College, Calcutta 700 013, India
3 Department of Physics, Presidency College, Calcutta 700 073, India
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(Received: 21 May 2001 / Revised version: 6 September 2001 Communicated by A. Molinari)
Abstract
The importance of studying matter at high increases as more
astrophysical data
becomes available from recently launched spacecrafts. The importance of
high-T studies derives from heavy-ion data.
In this paper we set up a formalism to study the
nucleons and isobars with long- and short-range potentials
non-pertubatively, bosonizing and expanding semi-classically the Feyman
integrals up to one loop. We address the low-density, finite-T problem
first, the case relevant to heavy-ion collisions, hoping to address the
high-density case later. Interactions change
the nucleon and isobar numbers at different and T non-trivially.
21.65.+f - Nuclear matter.
© Società Italiana di Fisica, Springer-Verlag 2001
