QUARK-MODEL CALCULATION OF THE PARITY VIOLATING NNPI-COUPLING IN THE WEINBERG-SALAM MODEL

被引：30

作者：

KORNER, JG

KRAMER, G

WILLRODT, J

机构：

[1] UNIV HAMBURG,INST THEORET PHYS 2,D-2000 HAMBURG,FED REP GER

[2] IST NAZL FIS NUCL,NAZL LAB,FRASCATI,ITALY

来源：

PHYSICS LETTERS B | 1979年 / 81卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(79)90354-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We argue that there are no charged current contributions to the parity violating NNπ coupling except for small contributions from flavour symmetry breaking effects. From the neutral current product only the left-right chiral component contributes which is considerably enhanced due to gluon corrections and due to the lightness of current quark masses. The resulting parity violating NNπ coupling has a definite phase and is ∼ 16 times stronger than the value used previously in nuclear physics calculations. © 1979.

引用

页码：365 / 370

页数：6

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