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Chiral Pion interaction in nuclear matter and chiral symmetry restoration

Abstract : This paper is devoted to the interplay between p-wave, s-wave pion-nucleon/ nucleus interaction and in-medium pion-pion interaction with special emphasis on the role of the nuclear pionic scalar density driving a large amount of chiral symmetry restoration. In particular we show that the $\pi NN$ coupling constant and the Goldberger-Treiman relation are preserved in the nuclear medium within certain conditions. We also discuss the related problem of the in-medium pion-pion strength function.
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Submitted on : Friday, January 26, 2001 - 3:28:57 PM
Last modification on : Friday, September 10, 2021 - 1:50:05 PM

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G. Chanfray, D. Davesne. Chiral Pion interaction in nuclear matter and chiral symmetry restoration. Nuclear Physics A, Elsevier, 1999, 647, pp.125-131. ⟨10.1016/S0375-9474(98)00615-0⟩. ⟨in2p3-00009565⟩

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