0 30 60 86 v 1 1 9 Ju n 20 03 SN 1987 A : Temporal Models

0 30 60 85 v 1 2 9 Ju n 20 03 FINITE TEMPERATURE STUDY OF NUCLEAR MATTER IN SU ( 2 ) CHIRAL SIGMA MODEL

We study here the equation of state of symmetric nuclear matter at finite temperatures using a modified SU(2) Chiral Sigma model. The effect of temperature on effective mass, entropy and binding energy is also studied. The liquid-gas phase transition is investigated and the critical values of temperature, density and pressure are calculated.

ar X iv : n uc l - th / 0 30 70 01 v 1 3 0 Ju n 20 03 - 1 - CORRELATION BETWEEN THE DEUTERON CHARACTERISTICS AND THE LOW - ENERGY TRIPLET np SCATTERING PARAMETERS

ar X iv : m at h - ph / 0 30 60 62 v 1 2 5 Ju n 20 03 VECTOR COHERENT STATES WITH AN UNBOUNDED INVERSE FRAME OPERATOR

We present a class of vector coherent states in the domain D × D × .... × D (n-copies), where D is the complex unit disc, using a specific class of hermitian matrices. Further, as an example, we build vector coherent states in the unit disc by considering the unit disc as the homogeneous space of the group SU (1, 1).

ar X iv : n uc l - th / 0 30 60 84 v 1 2 9 Ju n 20 03 Antiprotonic Potentials from Global Fits to the PS 209 Data ⋆

The experimental results for strong interaction effects in antiprotonic atoms by the PS209 collaboration consist of high quality data for several sequences of isotopes along the periodic table. Global analysis of these data in terms of a ¯ p-nucleus optical potential achieves good description of the data using a s-wave finite-range ¯ pN interaction. Equally good fits are also obtained with a po...

ar X iv : m at h - ph / 0 30 60 72 v 1 2 7 Ju n 20 03 Symmetries and currents of massless neutrino fields , electromagnetic and graviton fields

A recent complete, explicit classification of all locally constructed symmetries and currents for free spinorial massless spin s fields on Minkowski space is summarized and extended to give a classification of all covariant symmetry operators and conserved tensors. The results, for physically interesting cases, are also presented in tensorial form for electromagnetic and graviton fields (s = 1,...