TARGET DEPENDENCE OF K+-NUCLEUS TOTAL CROSS-SECTIONS

被引：41
作者：
JIANG, MF [1 ]
ERNST, DJ [1 ]
CHEN, CM [1 ]
机构：
[1] NATL TAIWAN UNIV, DEPT PHYS, TAIPEI 10764, TAIWAN
来源：
PHYSICAL REVIEW C | 1995年 / 51卷 / 02期
关键词：
D O I：
10.1103/PhysRevC.51.857
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We investigate the total cross section and its target dependence for K+-nucleus scattering using a relativistic momentum-space optical potential model which incorporates relativistically normalized wave functions, invariant two-body amplitudes, covariant kinematics, and an exact full-Fermi averaging integral. The definition of the total cross section in the presence of a Coulomb interaction is reviewed and the total cross section is calculated in a way that is consistent with what is extracted from experiment. In addition, the total cross sections for a nucleus and for the deuteron are calculated utilizing the same theory. This minimizes the dependence of the ratio of these cross sections on the details of the theory. The model dependence of the first-order optical potential calculations is investigated. The theoretical results are found to be systematically below all existing data. © 1995 The American Physical Society.
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页码：857 / 864
页数：8
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