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Chiral Symmetry and Three-Nucleon Forces | J.L. Friar
; D. Hüber
; U. van Kolck
; | Date: |
22 Sep 1998 | Journal: | Phys.Rev. C59 (1999) 53-58 | Subject: | nucl-th | Abstract: | After a brief review of the role three-nucleon forces play in the few-nucleon systems, the chiral-perturbation-theory approach to these forces is discussed. Construction of the (nominal) leading- and subleading-order Born terms and pion-rescattering graphs contributing to two-pion-exchange three-nucleon forces is reviewed, and comparisons are made of the types of such forces that are used today. It is demonstrated that the short-range $c$-term of the Tucson-Melbourne force is unnatural in terms of power counting and should be dropped. The class of two-pion-exchange three-nucleon forces then becomes rather uniform. | Source: | arXiv, nucl-th/9809065 | Services: | Forum | Review | PDF | Favorites |
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