MASS AND WIDTH OF THE RHO(0) FROM THE S-MATRIX APPROACH TO E+E--]PI+PI-

被引：56

作者：

BERNICHA, A ^{[1
]}

CASTRO, GL ^{[1
]}

PESTIEAU, J ^{[1
]}

机构：

[1] INST POSTAL POLITECN NACL,DEPT FIS,MEXICO CITY 07000,DF,MEXICO

来源：

PHYSICAL REVIEW D | 1994年 / 50卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.50.4454

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We determine the mass width of the rho0 meson by applying the S-matrix formalism to the reaction e+e- --> pi+pi- in the timelike region. We obtain M(rho) = (757.5 +/- 1.5) MeV and GAMMA(rho) = (142.5 +/- 3.5) MeV, which are significantly smaller than the values quoted by the Particle Data Group. These values are almost independent of the specific form used to model the background.

引用

页码：4454 / 4461

页数：8

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