Radial sensitivity of kaonic atoms and strongly bound (K)over-bar states

被引：19

作者：

Barnea, N. ^{[1
]}

Friedman, E. ^{[1
]}

机构：

[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

来源：

PHYSICAL REVIEW C | 2007年 / 75卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.75.022202

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：

The strength of the low-energy K--nucleus real potential has recently received renewed attention in view of experimental evidence for the possible existence of strongly bound K- states. Previous fits to kaonic atom data led to either "shallow" or "deep" potentials, where only the former are in agreement with chiral approaches but only the latter can produce strongly bound states. Here we explore the uncertainties of the K--nucleus optical potentials, obtained from fits to kaonic atom data, using the functional derivatives of the best-fit chi(2) values with respect to the potential. We find that only the deep type of potential provides information that is applicable to the K- interaction in the nuclear interior.

引用

页数：4

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