Photoproduction of vector mesons off nucleons near threshold

被引：122

作者：

Friman, B

Soyeur, M

机构：

[1] TH DARMSTADT, INST KERNPHYS, D-64289 DARMSTADT, GERMANY

[2] CE SACLAY, NATL SATURNE LAB, COMMISSARIAT ENERGIE ATOM, F-91191 GIF SUR YVETTE, FRANCE

来源：

NUCLEAR PHYSICS A | 1996年 / 600卷 / 04期

关键词：

vector mesons; photoproduction;

D O I：

10.1016/0375-9474(96)00011-5

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 propose a simple meson-exchange model of the photoproduction of rho- and omega-mesons off protons near threshold (E(gamma) less than or similar to 2 GeV). This model provides a good description of the available data and implies a large rho-nuclxeon interaction in the scalar channel (sigma-exchange). We use this phenomenological interaction to estimate the leading contribution to the self-energy of rho-mesons in matter. The implications of our calculation for experimental studies of the rho-meson mass in nuclei are discussed.

引用

页码：477 / 490

页数：14