Dropping Sigma-Meson Mass and In-Medium Pion-Pion Correlations
SchucK, P. · Aouissat, Z. · Chanfray, G. · Wambach, J.
الأصل · EN
The influence of a dropping sigma-meson mass on previously calculated in-medium pion-pion correlations in the J=I=0 (sigma-meson) channel is investigated. It is found that the invariant-mass distribution around the vacuum threshold experiences a further strong enhancement over and above the standard many-body effects. The relevance of this result for the theoretical interpretation of this result for the theoretical interpretation of recent A(pi-2 pi)X data is pointed out.
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