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Transport analysis of K+ production in proton-nucleus reactions | | Z. Rudy
; W. Cassing
; L. Jarczyk
; B. Kamys
; A. Kowalczyk
; P. Kulessa
; | | Date: |
2 Nov 2004 | | Journal: | Eur.Phys.J. A23 (2005) 379-385; Erratum-ibid. A24 (2005) 159 | | Subject: | nucl-th | | Affiliation: | Univ. Cracow), W. Cassing (Univ. Giessen), L. Jarczyk, B. Kamys, A. Kowalczyk (Univ. Cracow), P. Kulessa (Niewodnicza’nski Institute of Nuclear Physics, Cracow | | Abstract: | The production of $K^+$ mesons in proton-nucleus collisions from 1.0 to 2.3 GeV is analyzed with respect to one-step nucleon-nucleon $(NN o N Y K^+$) and two-step $Delta$-nucleon $(Delta N o K^+ Y N$) or pion-nucleon $(pi N o K^+ Y $) production channels on the basis of a coupled-channel transport approach (CBUU) including the kaon final-state-interactions (FSI). Momentum-dependent potentials for the nucleon, hyperon and kaon in the final state are included as well as $K^+$ elastic rescattering in the target nucleus. The transport calculations are compared to the experimental $K^+$ spectra taken at COSY-Jülich. Our systematic analysis of $K^+$ spectra from $^{12}C$, $^{63}Cu$, $^{107}Ag$ and $^{197}Au$ targets as well as their momentum differential ratios gives a repulsive $K^+$ potential of $20pm 5 $ MeV at normal nuclear matter density. | | Source: | arXiv, nucl-th/0411009 | | Other source: | [GID 904202] nucl-th/0411009 | | Services: | Forum | Review | PDF | Favorites | |
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