CP ASYMMETRIES IN B0 DECAYS IN THE PRESENCE OF FLAVOR-CHANGING NEUTRAL CURRENTS

被引：93
|
作者：
BRANCO, GC
MOROZUMI, T
PARADA, PA
REBELO, MN
机构：
[1] INST SUPER TECN,P-1699 LISBON,PORTUGAL
[2] ROCKEFELLER UNIV,NEW YORK,NY 10021
[3] STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309
来源：
PHYSICAL REVIEW D | 1993年 / 48卷 / 03期
关键词：
D O I：
10.1103/PhysRevD.48.1167
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study in detail models with vectorlike quarks, with special emphasis on their implications for CP asymmetries in B0 decays. In this class of models there are deviations from unitarity in the Cabibbo-Kobayashi-Maskawa matrix and flavor-changing neutral currents which, although naturally suppressed, may have important consequences. We show that even a relatively small contribution of Z-mediated flavor-changing neutral currents to B0-B0BAR mixing can lead to significant departures from the predictions of the standard model for CP asymmetries in B0 decays.
引用
收藏
页码：1167 / 1175
页数：9
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