A DISCUSSION ON THE EXISTENCE OF THE SADDLE-POINT SOLUTION

被引：0
|
作者：
WEN, JR
YIN, YD
HUANG, T
机构：
[1] ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
[2] ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 1993年 / 20卷 / 01期
关键词：
D O I：
10.1088/0253-6102/20/1/121
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We prove that there is no saddle point solution in the (1 + 1)-dimensional O(3) nonlinear sigma model with a term explicitly breaking symmetry down to O(2). In the standard model, it is shown that the ansatz of Monton is not sufficient to get a saddle point solution of the theory. Thus the question of baryon number violation based on the saddle point solution in the electroweak theory should be re-examined.
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页码：121 / 124
页数：4
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