Antiproton Absorption in Nuclei

Details Antiproton Absorption in Nuclei Antiproton Absorption in Nuclei

2006-01-11

arxiv.org/abs/nucl-th/0601036v2

Physics

Nuclear Physics

Nuclear Theory

Typos in eq. 7 corrected

Scientific paper

We present the analysis of experimental data on forward antiproton production on nuclei. The calculations are done in the framework of a folding model which takes properly into account both incoherent direct proton-nucleon and cascade pion-nucleon antiproton production processes as well as internal nucleon momentum distribution. The effective antiproton-nucleon cross section in nuclear matter and the imaginary part of the antiproton nuclear optical potential are estimated to be 25-45 mb and -(38-56) MeV at normal nuclear matter density, respectively. The results of the performed analysis evidence for the decreasing of antiproton absorption in the nuclear medium.

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