The Olsson sum rule and the rho Regge pole

被引：0

作者：

Yndurain, F. J. ^{[1
]}

机构：

[1] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain

来源：

Quark Confinement and the Hadron Spectrum VII | 2007年 / 892卷

关键词：

dispersion relations; regge theory;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider the Olsson sum rule, i.e., the forward dispersion relation for pion-pion scattering with exchange of isospin unity at threshold. We show that, if using the S0, S2 and P wave expressions of Colangelo, Gasser and Leutwyler, then either the sum rule is not satisfied or, if adjusting the residue of the rho exchange Regge amplitude to have the sum rule satisfied (as recently proposed by Caprini, Colangelo and Leutwyler) then the subsequent high energy amplitude is in disagreement with experimental pi-pi cross sections.

引用

页码：305 / 307

页数：3

共 6 条

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[6] xF3(x, Q2) Structure Function and Gross-Llewellyn Smith Sum Rule with Nuclear Effect and Higher Twist Correction
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COMMUNICATIONS IN THEORETICAL PHYSICS, 2016, 66 (06) : 663 - 670

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