Reduced sigma-meson mass and in-medium S-wave pi-pi correlations - art. no. 012202

Authors
Aouissat, Z Chanfray, G Schuck, P Wambach, J
Citation
Z. Aouissat et al., Reduced sigma-meson mass and in-medium S-wave pi-pi correlations - art. no. 012202, PHYS REV C, 6101(1), 2000, pp. 2202
Citations number
13
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW C-NUCLEAR PHYSICS
ISSN journal
05562813 → ACNP
Volume
6101
Issue
1
Year of publication
2000
Database
ISI
SICI code
0556-2813(200001)6101:1<2202:RSMAIS>2.0.ZU;2-0
Abstract
The influence of a reduced sigma-meson mass on previously calculated in-med ium pi pi correlations in the J =1=0 (sigma-meson) channel is investigated. It is found that the invariant-mass distribution around the vacuum thresho ld experiences a further strong enhancement with respect to standard many-b ody effects. The relevance of this result for the explanation of recent A(p i,2 pi)X data is pointed out.