Medium effects in K^+ nucleus interaction from consistent analysis of integral and differential cross sections

Details Medium effects in K^+ nucleus interaction from consistent analysis of integral and differential cross sections Medium effects in K^+ nucleus interaction from consistent analysis of integral and differential cross sections

1996-12-02

arxiv.org/abs/nucl-th/9612008v1

Phys.Lett. B396 (1997) 21-25

Physics

Nuclear Physics

Nuclear Theory

11 pages, RevTeX, 2 Postscript figures, submitted Phys. Lett. B

Scientific paper

10.1016/S0370-2693(97)00087-7

Self consistency in the analysis of transmission measurements for K^+ on several nuclei in the momentum range of 500-700 MeV/c is achieved with a "t_{eff}(rho)rho" potential and new results are derived for total cross sections. The imaginary part of the t_{eff} amplitude is found to increase linearly with the average nuclear density in excess of a threshold value. This phenomenological density dependence of the K^+ nucleus optical potential also gives rise to good agreement with recent measurements of differential cross sections for elastic scattering of 715 MeV/c K^+ by Li^6 and C.

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