Improved single sector supersymmetry breaking

Journal Article · Sun Oct 01 04:00:00 EDT 2000 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.62.075006· OSTI ID:20217742

Luty, Markus A ^[1]; Terning, John ^[2]

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1. Department of Physics, University of Maryland, College Park, Maryland 20742 (United States)
2. Department of Physics, University of California, and Theory Group, Lawrence Berkeley Laboratory, Berkeley, California 94720 (United States)

Building on recent work by Arkani-Hamed and the present authors, we construct realistic models that break supersymmetry dynamically and give rise to composite quarks and leptons, all in a single strongly coupled sector. The most important improvement compared to earlier models is that the second-generation composite states correspond to dimension-2 ''meson'' operators in the ultraviolet. This leads to a higher scale for flavor physics and gives a completely natural suppression of flavor-changing neutral currents. We also construct models in which the hierarchy of Yukawa couplings is explained by the dimensionality of composite states. These models provide an interesting and viable alternative to gravity- and gauge-mediated models. The generic signatures are unification of scalar masses with different quantum numbers at the compositeness scale, and lighter gaugino, Higgsino, and third-generation squark and slepton masses. We also analyze large classes of models that give rise to local vacua with both compositeness and supersymmetry breaking, based on gauge theories with confining, fixed-point, or free-magnetic dynamics. (c) 2000 The American Physical Society.

• OSTI ID: 20217742
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 62; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
FLAVOR MODEL
NEUTRAL CURRENTS
SPARTICLES
SUPERSYMMETRY
SYMMETRY BREAKING
THEORETICAL DATA
YUKAWA POTENTIAL