AMBIGUOUS MASS AND WIDTH OF RHO MESON

被引：4

作者：

EINHORN, MB

机构：

[1] Stanford Linear Accelerator Center, Stanford University, Stanford

来源：

PHYSICAL REVIEW | 1969年 / 185卷 / 05期

关键词：

D O I：

10.1103/PhysRev.185.1960

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The relationship between the mass and width of the ρ-meson resonance seen in colliding-beam experiments and the behavior of the ππ scattering phase shift is discussed in detail. Two conclusions are drawn: (1) The resonance peak in e+e- annihilation occurs 5 or 10 MeV below the energy where the phase shift reaches 12π; (2) the width should not be identified with the slope of the phase shift at one point-in fact, it depends critically on details of the ππ strong interaction over a wide energy range. © 1969 The American Physical Society.

引用

页码：1960 / &

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