Composition of Nuclear Matter with Light Clusters and Bose-Einstein Condensation of α Particles

作者:Wu, Xin-Hui; Wang, Si-Bo; Sedrakian, Armen*; Roepke, Gerd
来源:Journal of Low Temperature Physics, 2017, 189(3-4): 133-146.
DOI:10.1007/s10909-017-1795-x

摘要

The Bose-Einstein condensation of particles in the multicomponent environment of dilute, warm nuclear matter is studied. We consider the cases of matter composed of light clusters with mass numbers and matter that in addition to these clusters contains nuclei. We apply the quasiparticle gas model which treats clusters as bound states with infinite lifetime and binding energies independent of temperature and density. We show that the particles can form a condensate at low temperature MeV in such matter in the first case. When the nucleus is added to the composition, the cluster abundances are strongly modified at low temperatures, with an important implication that the condensation at these temperatures is suppressed.