arXiv subjects
Publications and source records attributed to Bernard PICHON CNRS.
We study the consequences of recent progress in the experimental determination of masses of neutron rich nuclei for our knowledge of the ground state of cold dense matter. The most recent experimental data determine the ground state of cold dense matter up to $ ρ\simeq 10^{11}~{\rm g~cm^{-3}} $. The composition and the equation of state of the ground state of matter, in this density interval, are calculated.
We present some results and remarks based on a combinatorial approach of the evaluation of the nuclear level density. First, we show that it is possible to extract some reliable information from the output of the program whose rough data present a strong statistical fluctuation from bin to bin. This includes smoothing and evaluation of the desired quantities. After some comments about the spin and parity distributions, we consider the question of the non-equipartition of parities, mainly, at low energies. Finally, we present a simple model to include and test this effect in the computation of thermonuclear reaction rates.