Dynamical symmetry breaking, CP violation, and a Higgs-like particle

被引：2
|
作者：
Holdom, B. [1 ]
机构：
[1] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada
来源：
PHYSICS LETTERS B | 2013年 / 721卷 / 4-5期
关键词：
D O I：
10.1016/j.physletb.2013.03.039
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A pseudoscalar associated with dynamical symmetry breaking can mix with a heavier scalar when CP is violated. We study how such a mixed state that is mostly pseudoscalar can resemble the observed 125 GeV particle. The production rate from gg is enhanced by the new heavy quarks and this compensates for the reduced WW, ZZ and gamma gamma branching ratios. The particle can appear to be a scalar from angular distributions in ZZ decay while its pseudoscalar couplings should become evident in other processes. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：290 / 293
页数：4
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