تقرير
Composition of nuclear matter with light clusters and Bose-Einstein condensation of $\alpha$ particles
| العنوان: | Composition of nuclear matter with light clusters and Bose-Einstein condensation of $\alpha$ particles |
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| المؤلفون: | Wu, Xin-Hui, Wang, Si-Bo, Sedrakian, Armen, Röpke, Gerd |
| المصدر: | Journal of Low Temperature Physics, 189(3), 133-146 (2017) |
| سنة النشر: | 2017 |
| المجموعة: | Astrophysics Condensed Matter Nuclear Theory |
| مصطلحات موضوعية: | Nuclear Theory, Astrophysics - High Energy Astrophysical Phenomena, Condensed Matter - Quantum Gases, Condensed Matter - Superconductivity |
| الوصف: | 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 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/s10909-017-1795-x |
| URL الوصول: | http://arxiv.org/abs/1705.02525 |
| رقم الأكسشن: | edsarx.1705.02525 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/s10909-017-1795-x |
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