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In-Medium Effective Pion Mass from Heavy-Baryon Chiral Perturbation Theory | | Tae-Sun Park
; Hong Jung
; Dong-Pil Min
; | | Date: |
29 Dec 2000 | | Journal: | J.Korean Phys.Soc. 41 (2002) 195-199 | | Subject: | nucl-th | | Abstract: | Using heavy-baryon chiral perturbation theory, we have calculated all the diagrams up to two-loop order which contribute to the S-wave pion self-energy in symmetric nuclear matter. Some subtleties related to the definition of pion fields are discussed. The in-medium pion mass is turned out to be increased by only (5 - 6) per cents in normal nuclear matter density, without any off-shell ambiguity. | | Source: | arXiv, nucl-th/0101064 | | Services: | Forum | Review | PDF | Favorites | |
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