NATURALLY LIGHT LEPTOQUARKS

被引：15

作者：

BAVER, E

LEURER, M

机构：

[1] Department of Particle Physics, Weizmann Institute

来源：

PHYSICAL REVIEW D | 1995年 / 51卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.51.260

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Light first generation leptoquarks are being hunted for at the DESY ep collider HERA and at Fermilab and there are various proposals for further searches in future machines. Such leptoquarks are, however, problematic from a theoretical point of view: Low energy precision measurements imply strong constraints on the couplings of the leptoquarks, and up until now the fulfillment of these constraints seemed extremely unnatural. Here we show that horizontal symmetries, which are very conventional and widely used in the literature for completely different purposes, can suppress the unwanted couplings. Therefore light first generation leptoquarks can be natural. © 1995 The American Physical Society.

引用

页码：260 / 264

页数：5

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