English

Composition of nuclear matter with light clusters and Bose-Einstein condensation of $\alpha$ particles

Nuclear Theory 2017-09-26 v1 High Energy Astrophysical Phenomena Quantum Gases Superconductivity

Abstract

The Bose-Einstein condensation of α\alpha partciles in the multicomponent environment of dilute, warm nuclear matter is studied. We consider the cases of matter composed of light clusters with mass numbers A4A\leq 4 and matter that in addition these clusters contains \isotope[56]Fe\isotope[56]{Fe} nuclei. We apply the quasiparticle gas model which treats clusters as bound states with infinite life-time and binding energies independent of temperature and density. We show that the α\alpha particles can form a condensate at low temperature T2T\le 2 MeV in such matter in the first case. When the \isotope[56]Fe\isotope[56]{Fe} nucleus is added to the composition the cluster abundances are strongly modified at low temperatures, with an important implication that the α\alpha condensation at these temperatures is suppressed.

Keywords

Cite

@article{arxiv.1705.02525,
  title  = {Composition of nuclear matter with light clusters and Bose-Einstein condensation of $\alpha$ particles},
  author = {Xin-Hui Wu and Si-Bo Wang and Armen Sedrakian and Gerd Röpke},
  journal= {arXiv preprint arXiv:1705.02525},
  year   = {2017}
}

Comments

15 pages, 8 figures