Elsevier

Physics Letters B

Volume 312, Issues 1–2, 5 August 1993, Pages 18-23
Physics Letters B

S-wave pion optical potential from medium-modified ππ scattering amplitude

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Abstract

We show that a recent model of medium modifications of the ππ scattering amplitude leads to a new source of repulsion in the S-wave pion optical potential, which existing models are unable to explain. Our result indicates that pions do not condense through S-wave interactions.

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