Vector meson photoproduction processes near threshold

被引：0

作者：

Oh, Y ^{[1
]}

机构：

[1] Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2003年 / 43卷

关键词：

vector meson photoproduction; polarization asymmetries; nucleon resonances; OZI violation;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the photoproduction processes of light vector mesons (rho, omega and phi) from the nucleon near threshold. We first develop a simple model based on meson exchanges which is modified by the nucleon pole terms. We then extend this model to study other physically interesting topics. As examples, we discuss the missing nucleon resonances problem in omega photoproduction and the direct phiNN coupling constant in phi photoproduction. The calculated cross sections are compared with the recent experimental data. Various spin observables are discussed, which may be measured at current photon/electron facilities such as TJNAF and SP ring-8 of RCNP. Precise measurements of such quantities would provide very useful information to understand the production mechanism.

引用

页码：S20 / S26

页数：7

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