Discrete R symmetries and domain walls

被引:24
作者
Dine, Michael [1 ,2 ,3 ]
Takahashi, Fuminobu [4 ]
Yanagida, Tsutomu T. [4 ,5 ]
机构
[1] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA
[2] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA
[3] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
[4] Univ Tokyo, Inst Phys & Math Univ, Chiba 2778583, Japan
[5] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan
关键词
Discrete and Finite Symmetries; Supergravity Models; Cosmology of Theories beyond the SM; Anomalies in Field and String Theories; GRAVITATIONAL-WAVES; SUPERSYMMETRY-BREAKING; CHAOTIC INFLATION; SUPERGRAVITY; COSMOLOGY; GRAVITINO; STRINGS; MODELS; LIGO;
D O I
10.1007/JHEP07(2010)003
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
Discrete R symmetries are interesting from a variety of points of view. They raise the specter, however, of domain walls, which may be cosmologically problematic. In this note, we describe some of the issues. In many schemes for supersymmetry breaking, as we explain, satisfying familiar constraints such as suppression of gravitino production, insures that the domain walls are readily inflated away. However, in others, they form after inflation. In these cases, it is necessary that they annihilate. We discuss possible breaking mechanisms for the discrete symmetries, and the constraints they must satisfy so that the walls annihilate effectively.
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页数:14
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