期刊
EUROPEAN PHYSICAL JOURNAL A
卷 51, 期 3, 页码 -出版社
SPRINGER
DOI: 10.1140/epja/i2015-15026-y
关键词
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资金
- EU
- European Research Council [ERC-2010-StG 259218 NuclearEFT]
- DFG [TR 16]
We confirm the claim of Phillips and Schat (Phys. Rev. C 88, 034002 (2013)) that 20 operators are sufficient to represent the most general local isospin-invariant three-nucleon force and derive explicit relations between the two sets of operators suggested in the above-mentioned work and that by Krebs et al. (Phys. Rev. C 87, 054007 (2013)). We use the set of 20 operators to discuss the chiral expansion of the long-and intermediate-range parts of the three-nucleon force up to next-to-next-to-next-to-next-to-leading order in the standard formulation without explicit Delta(1232) degrees of freedom. We also address implications of the large-N-c expansion in QCD for the size of the various three-nucleon force contributions.
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