Composition of nuclear matter with light clusters and Bose-Einstein condensation of $\alpha$ particles
| Autor: | Wu, Xin-Hui, Wang, Si-Bo, Sedrakian, Armen, Röpke, Gerd |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Journal of Low Temperature Physics, 189(3), 133-146 (2017) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1007/s10909-017-1795-x |
| Popis: | The Bose-Einstein condensation of $\alpha$ 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 $A\leq 4$ 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 $\alpha$ 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 $\alpha$ condensation at these temperatures is suppressed. Comment: 15 pages, 8 figures |
| Databáze: | arXiv |
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