Jastrow functions in double-β decay

被引：16

作者：

Engel, J. ^{[1
]}

Carlson, J. ^{[2
]}

Wiringa, R. B. ^{[3
]}

机构：

[1] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27516 USA

[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[3] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA

来源：

PHYSICAL REVIEW C | 2011年 / 83卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.83.034317

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We use simple analytic considerations and a Monte Carlo calculation of nucleons in a box to argue that the use of Jastrow functions as short-range correlators in the commonly employed two-body cluster approximation causes significant errors in the matrix elements for double-beta decay. The Jastrow approach appears to agree with others, however, if many-body clusters are included. A careful treatment of the charge-changing analog of the nuclear pair density shows, in addition, that differences between the unitary correlation operator method and Brueckner methods for treating short-range correlations in double-beta decay are less significant than suggested by previous work.

引用

页数：6

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