One-loop contributions in the effective field theory for the ΛN → NN transition

被引：10
|
作者：
Perez-Obiol, A. [1 ]
Entem, D. R. [2 ,3 ]
Julia-Diaz, B. [1 ,4 ]
Parreno, A. [1 ]
机构：
[1] Univ Barcelona, ICC, Dept Estruct & Constituents Mat, E-08028 Barcelona, Spain
[2] Univ Salamanca, Grp Fis Nucl, E-37008 Salamanca, Spain
[3] Univ Salamanca, IUFFyM, E-37008 Salamanca, Spain
[4] ICFO Inst Ciencies Foton, E-08860 Castelldefels, Barcelona, Spain
来源：
PHYSICAL REVIEW C | 2013年 / 87卷 / 04期
关键词：
WEAK STRANGENESS PRODUCTION; MESON-EXCHANGE; NUCLEON; DECAY;
D O I：
10.1103/PhysRevC.87.044614
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 consider the Lambda N -> NN weak transition, responsible for a large fraction of the nonmesonic weak decay of hypernuclei. We follow the previously derived effective field theory and compute the next-to-leading one-loop corrections. Explicit expressions for all diagrams are provided, which result in contributions to all relevant partial waves.
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页数：17
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