Theoretical research on proton halos in exotic nuclei

Very neutron-deficient nuclei are investigated with Woods-Saxon potentials,especially the newly measured A =2Z-1 nucleus 65As [X.L.Tu et al.,Phys.Rev.Lett.106,112501（2011）],where the experimental proton separation energy is obtained as-90（85） keV for the first time.Careful consideration is given to...

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Bibliographic Details
Published in:Chinese physics C 2017-11, Vol.41 (11), p.89-94
Main Authors: 倪冬冬, 任中洲
Format: Article
Language:English
Subjects:
分离能
奇异核
库仑波
灵敏度
第一激发态
缺中子核
质子晕
边界条件
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Summary:Very neutron-deficient nuclei are investigated with Woods-Saxon potentials,especially the newly measured A =2Z-1 nucleus 65As [X.L.Tu et al.,Phys.Rev.Lett.106,112501（2011）],where the experimental proton separation energy is obtained as-90（85） keV for the first time.Careful consideration is given to quasibound protons with outgoing Coulomb wave boundary conditions.The observed proton halos in the first excited state of 17F and in the ground states of 26,27,28P are reproduced well,and predictions of proton halos are made for the ground states of 56,57Cu and 65As.The sensitivity of the results to the proton separation energy is discussed in detail,together with the effect of the l=1 centrifugal barrier on proton halos.
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/41/11/114104