Origin of a peculiar extra U(1) -: art. no. 015011

被引：28

作者：

Barr, SM ^{[1
]}

Dorsner, I

机构：

[1] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA

[2] Abdus Salam Int Ctr Theoret Phys, I-31014 Trieste, Italy

来源：

PHYSICAL REVIEW D | 2005年 / 72卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.72.015011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The origin of a family-independent "extra U(1)", discovered by Barr, Bednarz, and Benesh and independently by Ma, and whose phenomenology has recently been studied by Ma and Roy, is discussed. Even though it satisfies anomaly constraints in a highly economical way, with just a single extra triplet of leptons per family, this extra U(1) cannot come from four-dimensional grand unification. However, it is shown here that it can come from a Pati-Salam scheme with an extra U(1), which explains the otherwise surprising cancellation of anomalies.

引用

页码：1 / 4

页数：4

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