Actions for Self-screening of the particle-hole interaction and core polarization of the effective two-particle interaction [electronic resource].

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Self-screening of the particle-hole interaction and core polarization of the effective two-particle interaction [electronic resource].

Published
Washington, D.C. : U.S. Atomic Energy Commission, 1973.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 34 : digital, PDF file
Additional Creators
State University of New York at Stony Brook. Department of Physics, U.S. Atomic Energy Commission, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The diagrams of the Tamm-- Dancoff and random-phase approximations (TDA and RPA) were summed to calculate the core polarization of the effective interaction between two nucleons in the (1s0d) and (1p0f) shells. The large core- polarization corrections obtained in the TDA and particularly the RPA are strongly reduced when the self-screening corrections to the particle-hole and ground-state correlation vertices are included. The screening corrections serve to suppress the collectivity of the core phonons and in particular stabilize the isoscalar monopole phonon in /sup 40/Ca against collapse. When screening is included the TDA and RPA give core-polarization corrections which are similar in magnitude and in many cases lead to good agreement with experiment. Because of neglected effects and other uncertainties the qualitative rather than the quantitative features of the results are stressed. (auth)
Report Numbers
E 1.99:coo--3001-53
coo--3001-53
Subject(s)
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Note
Published through SciTech Connect.
01/01/1973.
"coo--3001-53"
Osnes, E; Kuo, T T.S.
Funding Information
AT(11-1)-3001
View MARC record | catkey: 14382145