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

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 نشر من قبل Armen Sedrakian
 تاريخ النشر 2017
  مجال البحث فيزياء
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 تأليف Xin-Hui Wu




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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 $Aleq 4$ 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 $Tle 2$ 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.



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