Coherent meson production in antinucleon annihilation on nuclei

被引：0
|
作者：
Lourenco, S. [1 ]
Lenske, H. [1 ]
Wycech, S. [2 ]
机构：
[1] JLU Giessen, Inst Theoret Phys, D-35392 Giessen, Germany
[2] Natl Ctr Nucl Studies, PL-00681 Warsaw, Poland
来源：
HYPERFINE INTERACTIONS | 2014年 / 229卷 / 1-3期
关键词：
Antiproton; Pion production; Eikonal approximation; SCATTERING;
D O I：
10.1007/s10751-014-1050-7
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
A phenomenological optical potential for antinucleon-nucleon (NI...N) interaction in an energy range of 1 to 15 GeV is presented in an eikonal model. In addition to the discussion of the strength and energy dependence, the potential is used to describe initial state interactions for coherent meson production on nuclei. To describe nuclear matter effects, Hartree-Fock Bogoliobuv (HFB) densities are used. As a first step we calculate the production of two mesons, namely pions. To cover the large energy range, the final state pion-nucleus ( pi A) interaction is improved by adding resonances beyond the Delta resonance to a Kisslinger-type ansatz. Results for NI...N and pi A cross sections are presented.
引用
收藏
页码：53 / 58
页数：6
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