$(p,\pi^\pm)$ correlations in central heavy-ion collisions at $1\!\div\!2$ AGeV

A.B. Larionov; W. Cassing; M. Effenberger; U. Mosel

doi:doi:10.1007/PL00013652

EPJ

$(p,\pi^\pm)$ correlations in central heavy-ion collisions at $1\!\div\!2$ AGeV

A.B. Larionov - W. Cassing - M. Effenberger - U. Mosel

Institut für Theoretische Physik, Universität Giessen, 35392 Giessen, Germany

Received: 18 October 1999 / Revised version: 4 February 2000 Communicated by W. Weise

Abstract
The proton - charged pion correlated emission is studied in the reactions Au (1.06 AGeV) + Au, Ni (1.06 and 1.93 AGeV) + Ni and Ni (1.97 AGeV) + Cu within the BUU approach. The associated invariant mass distributions are shifted to smaller energies with respect to the free $\Delta(1232)$ mass distribution due to kinematical reasons. We find that the existing and partly conflicting experimental data do not allow to draw definite conclusions on the in-medium modification of the $\Delta(1232)$ .

PACS
25.75.-q Relativistic heavy-ion collisions - 25.75.Dw Particle and resonance production - 25.75.Gz Particle correlations