2018 Impact factor 2.481
Hadrons and Nuclei


Eur. Phys. J. A 12, 41-49 (2001)

Nucleons and isobars at finite density ($\rho$) 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

cenni@ge.infn.it
deyjm@giascl01.vsnl.net.it

(Received: 21 May 2001 / Revised version: 6 September 2001 Communicated by A. Molinari)

Abstract
The importance of studying matter at high $\rho$ 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 $\rho$ and T non-trivially.

PACS
21.65.+f - Nuclear matter.

© Società Italiana di Fisica, Springer-Verlag 2001