SUPERSYMMETRY AND SU(2)XU(1) BREAKING WITH NATURALLY VANISHING VACUUM ENERGY

被引：10

作者：

BRIGNOLE, A ^{[1
]}

ZWIRNER, F ^{[1
]}

机构：

[1] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

来源：

PHYSICS LETTERS B | 1995年 / 342卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0370-2693(94)01361-F

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show how the spontaneous breaking of local N = 1 supersymmetry and of the SU(2) x U(1) gauge symmetry can be simultaneously realized, with naturally vanishing tree-level vacuum energy, in superstring effective supergravities. Both the gravitino mass m(3/2) and the electroweak scale mt are classically undetermined, and slide along moduli directions that include the Higgs flat direction \H-1(0)\ = \H-2(0)\ There are important differences with conventional supergravity models: the goldstino has components along the higgsino direction; SU(2) x U(1) breaking occurs already at the classical level; the scales m(3/2) and M(z), the gauge couplings, the lightest Higgs mass and the cosmological constant are entirely determined by quantum corrections.

引用

页码：117 / 124

页数：8

共 80 条

[1] A COSMOLOGICAL BOUND ON THE INVISIBLE AXION [J].