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Author Galanina, L. I. ♦ Zelenskaya, N. S.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ATOMIC AND MOLECULAR PHYSICS ♦ ANGULAR DISTRIBUTION ♦ BERYLLIUM 11 ♦ BERYLLIUM 9 REACTIONS ♦ BOUND STATE ♦ CONFIGURATION ♦ DINEUTRONS ♦ INTERACTIONS ♦ J-J COUPLING ♦ LITHIUM 11 ♦ LITHIUM 9 REACTIONS ♦ MAJORANA SPINORS ♦ PROTONS ♦ SHELL MODELS ♦ SPECTROSCOPIC FACTORS ♦ STRIPPING ♦ WAVE FUNCTIONS
Abstract On the basis of the shell model with an extended basis, the structure of {sup 9}Li-{sup 9}Be to {sup 11}Li-{sup 11}Be nuclei is examined with allowance for the competition of {sup jj} coupling and Majorana exchange forces via considering the sequential addition of neutrons, and the respective wave functions are determined. A formalism for calculating the spectroscopic factor for a dineutron and for individual neutrons in nuclei whose wave functions incorporate the mixing of shell configurations is developed. The reactions {sup 9}Li(t, p){sup 11}Li and {sup 9}Be(t, p){sup 11}Be treated with allowance for the mechanisms of dineutron stripping and a sequential transfer of two neutrons are considered as an indicator of the proposed structure of lithium and berylliumisotopes. The parameters of the optical potentials, the wave functions for the bound states of transferred particles, and the interaction potentials corresponding to them are determined from a comparison of the theoretical angular distribution of protons from the reaction {sup 9}Be(t, p){sup 11}Be with its experimental counterpart. It is shown that a dineutron periphery of size about 6.4 fm is present in the {sup 11}Li nucleus and that a single-neutron periphery of size about 8 fm is present in the {sup 11}Be nucleus.
ISSN 10637788
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-07-15
Publisher Place United States
Journal Physics of Atomic Nuclei
Volume Number 79
Issue Number 4


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