Publication:
Estimation of the decay rate of Be 7 and Be2 7 encapsulated in C70

Дата
2019
Авторы
Bibikov, A. V.
Nikolaev, A. V.
Tkalya, E. V.
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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.
Выпуск журнала
Аннотация
© 2019 American Physical Society.Electron capture (β-decay) rates of Be7 and Be27 encapsulated in C70 have been estimated by calculating the electron density ρ(0) at the Be7 nucleus and comparing it with ρ(0) and experimental β-decay rates of Be7 inside another fullerene - C60. For that the endohedral fullerenes Be7@C70 and Be27@C70 have been examined by means of the ab initio approach using the Hartree-Fock method with the the second order Møller-Plesset perturbation theory accounting for the Van der Waals foces. Our calculations indicate that the Be27@C70 complex is stable with the binding energy of 1.3 eV and the Be7 dimer bond length 2.30 Å. It has been found that ρ(0) is practically the same in Be7@C70 and Be27@C70, but larger than in an isolated Be7 atom. The increase of ρ(0) however is smaller than in Be7@C60. We also discuss in detail the mechanism underlying the increase of ρ(0) and consequently the decrease of the decay rate in Be7@C70 in comparison with the isolated Be7 atom.
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Цитирование
Bibikov, A. V. Estimation of the decay rate of Be 7 and Be2 7 encapsulated in C70 / Bibikov, A.V., Nikolaev, A.V., Tkalya, E.V. // Physical Review C. - 2019. - 100. - № 6. - 10.1103/PhysRevC.100.064603
URI
https://www.doi.org/10.1103/PhysRevC.100.064603
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85076483285&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000501486400004
 https://openrepository.mephi.ru/handle/123456789/19026
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