Publication: α -cluster formation and decay: The role of shell structure
Дата
2021
Авторы
Yang, S.
Xu, C.
Ropke, G.
Journal Title
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Volume Title
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Аннотация
© 2021 American Physical Society.Shell structure effects on α-cluster formation and decay are studied by using the quartetting wave function approach (QWFA). Both the intrinsic and center-of-mass (c.o.m.) motions of an α cluster inside a core nucleus are investigated with different contributing shell model wave functions. The overlap between intrinsic wave functions of four nucleons in the α-like quartet state and in a free α particle is analyzed in detail. The change of the effective potential describing the c.o.m. motion of the quartet is explicitly shown for the major shell closures Z=82 and N=126. It is found that both the α-cluster formation probability and the half-life are sensitive to the quartet shell model states. By extending the QWFA calculations from Po212 to α emitters with one or two extra nucleons, we show that the bound state and scattering wave functions of the α cluster are changed accordingly. The calculated α-decay half-lives agree nicely with the experimental data.
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Цитирование
Yang, S. α -cluster formation and decay: The role of shell structure / Yang, S., Xu, C., Ropke, G. // Physical Review C. - 2021. - 104. - № 3. - 10.1103/PhysRevC.104.034302
URI
https://www.doi.org/10.1103/PhysRevC.104.034302
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https://www.scopus.com/record/display.uri?eid=2-s2.0-85114685869&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000693633700001
https://openrepository.mephi.ru/handle/123456789/24688