Publication:
Light p-shell nuclei with cluster structures (4 <= A <= 16) in nuclear matter

Дата
2020
Авторы
Ropke, G.
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Научные группы
Организационные подразделения
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Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
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Аннотация
The composition of hot and dense nuclear matter is calculated including the 1p-shell nuclei 4 <= A <= 16. In-medium shifts, in particular Pauli blocking, are determined by the intrinsic wave function of the nuclei. Results are given within a shell-model approach for the nucleon wave function. Light nuclei are not always well described by the shell model. The "clustered" nucleus Be-8 exhibits strong correlation effects because of alpha-like clustering. Intrinsic cluster structures are also significant for the nuclei Li-6, Li-7, Be-7, and Be-9. The contribution of the relatively rare elements Li, Be, and B, to the equation of state (EoS) of matter near the saturation density is overestimated in simple approaches such as the nuclear statistical equilibrium (NSE) model. Both the treatment of continuum correlations and the account of in-medium modifications are considered for the contribution of He-5 and H-4 clusters. Compared to the extended NSE including unstable nuclei, the contributions of the corresponding P-3/2 channel with A = 5, Z = 2 and P-2 channel with A = 4, Z = 1, respectively, to the EoS are strongly suppressed at high densities owing to Pauli blocking effects. For the shifts of the binding energies of the light p-shell nuclei, simple-fit formula are given to calculate the composition of hot and dense matter in a wide parameter range.
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Цитирование
Ropke, G. Light p-shell nuclei with cluster structures (4 <= A <= 16) in nuclear matter / Ropke, G // Physical Review C. - 2020. - 101. - № 6. - 10.1103/PhysRevC.101.064310
URI
https://www.doi.org/10.1103/PhysRevC.101.064310
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85087671953&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000540165100004
 https://openrepository.mephi.ru/handle/123456789/21950
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