Coherent meson production in antinucleon annihilation on nuclei
Coherent meson production in antinucleon annihilation on nuclei
复制标题
原子核上反核子湮灭中的相干介子产生
DOI:
10.1007/s10751-014-1050-7
复制
发表时间:
2014
影响因子:
--
通讯作者:
S. Wycech
中科院分区:
文献类型:
--
作者:
S. Lourenco;H. Lenske;S. Wycech
A phenomenological optical potential for antinucleon-nucleon (N̅N) 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 (πA) interaction is improved by adding resonances beyond the Δ resonance to a Kisslinger-type ansatz. Results forN̅NandπAcross sections are presented.