pi pi correlations in gamma+A reactions

JG Messchendorp*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)

Abstract

Preliminary 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. The in-medium observation in the pi(0)pi(0) channel is consistent with an in-medium modification of the pipi interaction in the I = J = 0 channel, changing width and pole position of a pipi resonant state.

Original languageEnglish
Pages (from-to)417-419
Number of pages3
JournalEuropean Physical Journal A
Volume18
Issue number2-3
DOIs
Publication statusPublished - Nov-2003
EventInternational Conference on Quark Nuclear Physics - JULICH, Germany
Duration: 9-Jun-200214-Jun-2002

Keywords

  • NUCLEAR MEDIUM
  • MESON

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