Conference paper

Publication year: 2003

Pages: 102-111

Journal: Progress of Theoretical Physics. Supplement

Issue number: 149

ISSN: 0375-9687

Open access status: Bronze

Conference: Workshop on Chiral Restoration in Nuclear Medium

Publisher: Progress of Theoretical Physics

Abstract: 
Differential cross sections of the-reactions A(gamma,pi(0) pi(0)) and A(gamma, pi(0) pi(+) + pi(0) pi(-)) with A=H-1, C-12, and Pb-nat are presented. A significant. nuclear-mass dependence of the pipi invariant-mass distribution is found in the pi(0) pi(0) channel. The dependence is not observed in the pi(0) pi(+/-) channel. Within a unitary chiral-perturbation approach,(5)) the in-medium observation in the pi(0) pi(0) channel is interpreted as an in-medium modification of the pipi interaction in the sigma (I=J=0) channel, changing width and pole position with increasing effective nuclear density.

Harvard Citation style: Messchendorp, J. (2003) π-π correlations in photon-induced reactions, Progress of Theoretical Physics -- Supplement-(149), pp. 102-111

APA Citation style: Messchendorp, J. (2003). π-π correlations in photon-induced reactions. Progress of Theoretical Physics -- Supplement-(149), 102-111.