Variations on minimal gauge-mediated supersymmetry breaking

Journal Article · Sat Feb 01 04:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.55.1501· OSTI ID:450552

Dine, M ^[1]; Nir, Y ^[2]; Shirman, Y ^[1]

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1. Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, California 95064 (United States)
2. Department of Particle Physics, Weizmann Institute of Science, Rehovot 76100 (Israel)

We study various modifications to the minimal models of gauge-mediated supersymmetry breaking. We argue that, under reasonable assumptions, the structure of the messenger sector is rather restricted. We investigate the effects of possible mixing between messenger and ordinary squark and slepton fields and, in particular, violation of universality. We show that acceptable values for the {mu} and B parameters can naturally arise from discrete, possibly horizontal, symmetries. We claim that in models where the supersymmetry-breaking parameters A and B vanish at the tree level, tan{beta} could be large without fine-tuning. We explain how the supersymmetric CP problem is solved in such models. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 450552
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CP INVARIANCE
LEPTONS
MIXING
QUARKS
SPARTICLES
SUPERSYMMETRY
SYMMETRY BREAKING
gauge field theory