Generalized messengers of supersymmetry breaking and the sparticle mass spectrum

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

DOI:https://doi.org/10.1103/PhysRevD.55.3177· OSTI ID:467563

Martin, S P ^[1]

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1. Randall Physics Laboratory, University of Michigan, Ann Arbor, Michigan 48109-1120 (United States)

We investigate the sparticle spectrum in models of gauge-mediated supersymmetry breaking. In these models, supersymmetry is spontaneously broken at an energy scale only a few orders of magnitude above the electroweak scale. The breakdown of supersymmetry is communicated to the standard model particles and their superpartners by {open_quotes}messenger{close_quotes} fields through their ordinary gauge interactions. We study the effects of a messenger sector in which the supersymmetry-violating {ital F}-term contributions to messenger scalar masses are comparable to the supersymmetry-preserving ones. We also argue that it is not particularly natural to restrict attention to models in which the messenger fields lie in complete SU(5) ground unified theory multiplets, and we identify a much larger class of viable models. Remarkably, however, we find that the superpartner mass parameters in these models are still subject to many significant contraints. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 467563
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 5 Vol. 55; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
GRAND UNIFIED THEORY
MASS FORMULAE
MASS SPECTRA
SPARTICLES
STANDARD MODEL
SU-5 GROUPS
SUPERSYMMETRY
SYMMETRY BREAKING