DISPERSION-RELATION ANALYSIS OF THE NUCLEON ELECTROMAGNETIC FORM-FACTORS WITH UNCORRELATED PI-PI AND K(K)OVER-BAR PAIRS

被引：6

作者：

FURUICHI, S ^{[1
]}

WATANABE, K ^{[1
]}

机构：

[1] MEISEI UNIV,DEPT PHYS,HINO,TOKYO 191,JAPAN

来源：

PROGRESS OF THEORETICAL PHYSICS | 1994年 / 92卷 / 02期

关键词：

D O I：

10.1143/PTP.92.339

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Experimental data on the nucleon electromagnetic form factors, including the new SLAC data, are analyzed with recourse to the superconvergent dispersion relation that satisfies the asymptotic constraints predicted by perturbative QCD. The effect of kaon pair is incorporated in addition to that of two pions. Very good agreement with the experimental data is obtained. The effect of strange quark may be represented only by phi meson pole and the uncorrelated effect of kaon pair is estimated to be small. The effective coupling constant of phi meson and nucleon is the same order of magnitude as that of omega meson.

引用

页码：339 / 352

页数：14

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