DETERMINATION OF THE CHARGED-PION COUPLING-CONSTANT FROM DATA ON THE CHARGE-EXCHANGE REACTION PBARP-]NBARN

被引：56

作者：

TIMMERMANS, RGE

RIJKEN, TA

DESWART, JJ

机构：

[1] Institute for Theoretical Physics, University of Nijmegen, Nijmegen

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.67.1074

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The coupling constant of the charged pions to nucleons is extracted from a partial-wave analysis of antinucleon-nucleon scattering data below p(lab) = 950 MeV/c. For the value at the pion pole we find f(c)2 = 0.0751 +/- 0.0017 or equivalently g(c)2 = 13.6 +/- 0.3. This result is in agreement with the value found in the recent VPI&SU analysis of pi-N scattering data. Comparing with the neutral-pion coupling constant as determined in the Nijmegen phase-shift analysis of proton-proton scattering data, we see no evidence for a charge dependence of the pion-nucleon coupling constants.

引用

页码：1074 / 1077

页数：4

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