Conformal Gauge Mediation and Light Gravitino of Mass m_{3/2} < O(10) eV

Ibe, M. ; /SLAC ; Nakayama, Y. ; /UC, Berkeley ; Yanagida, T.T. ; U., /Tokyo

Stanford Linear Accelerator Center

关键词: Phenomenology-Hep,Hepph, Hepth;    Supersymmetry Phenomenology-Hep,Hepph, Hepth;    Sparticles;    71 Classical And Quantum Mechanics, General Physics;    Cosmology;   

DOI  :  10.2172/927074
RP-ID  :  SLAC-PUB-13195
RP-ID  :  AC02-76SF00515
RP-ID  :  927074

美国|英语

来源: UNT Digital Library

【 摘 要 】

We discuss a class of gauge mediated supersymmetry breaking models with conformal invariance above the messenger mass scale (conformal gauge mediation). The spectrum of the supersymmetric particles including the gravitino is uniquely determined by the messenger mass. When the conformal fixed point is strongly interacting, it predicts a light gravitino of mass m{sub 3/2} < O(10) eV, which is attractive since such a light gravitino causes no problem in cosmology.