Publication:
Possible neutron and proton halo structure in the isobaric analog states of A=12 nuclei

Дата
2020
Авторы
Demyanova, A. S.
Starastsin, V. I.
Danilov, A. N.
Ogloblin, A. A.
Gurov, G. P.
Journal Title
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Volume Title
Издатель
Научные группы
Организационные подразделения
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Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
Выпуск журнала
Аннотация
© 2020 American Physical Society.The differential cross sections of the B11(He3,d)C12 reaction leading to formation of the 0+ ground state and the 15.11-MeV 1 +, 16.57-MeV 2-, and 17.23-MeV 1- excited states of C12 are measured at Elab=25 MeV. The analysis of the data is carried out within the coupled-reaction-channels method for the direct proton transfer to the bound and unbound states. The rms radii of the last proton in all states studied are determined. A comparison of the rms radii of the B12, C12, and N12 nuclei in the isobaric analog states (IASs) with isospin T=1 determined by different methods allows us to arrive at a conclusion that these nuclei in the 1- excited states at Ex=2.62, 17.23, and 1.80 MeV, respectively, possess one-nucleon (neutron or proton) halo structure. The enlarged radii and a large probability of the last neutron to be outside of the range of the interaction potential are also found for the 2- states of B12, C12, and N12 at Ex=1.67, 16.57, and 1.19 MeV, respectively. These IASs also can be regarded as candidates for states with one-nucleon (neutron or proton) halo.
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Цитирование
Possible neutron and proton halo structure in the isobaric analog states of A=12 nuclei / Demyanova, A.S. [et al.] // Physical Review C. - 2020. - 102. - № 5. - 10.1103/PhysRevC.102.054612
URI
https://www.doi.org/10.1103/PhysRevC.102.054612
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85097173026&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000595152800009
 https://openrepository.mephi.ru/handle/123456789/22654
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