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arXiv · 1705.02525

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

Xin-Hui Wu·Si-Bo Wang·Armen Sedrakian·Gerd Röpke
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Abstract

The Bose-Einstein condensation of $α$ 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 $A\leq 4$ and matter that in addition these clusters contains $\isotope[56]{Fe}$ 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 $α$ particles can form a condensate at low temperature $T\le 2$ MeV in such matter in the first case. When the $\isotope[56]{Fe}$ nucleus is added to the composition the cluster abundances are strongly modified at low temperatures, with an important implication that the $α$ condensation at these temperatures is suppressed.

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Xin-Hui Wu, Si-Bo Wang, Armen Sedrakian, Gerd Röpke. 2017-05-06. Composition of nuclear matter with light clusters and Bose-Einstein condensation of $α$ particles. https://doi.org/10.1007/s10909-017-1795-x

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