Gauge mediation with sequestered supersymmetry breaking

Journal Article · Wed Oct 01 04:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.075003· OSTI ID:21254316

Shirai, Satoshi; Yonekura, Kazuya ^[1]; Takahashi, Fuminobu ^[2]; Yanagida, T T ^[1]

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1. Department of Physics, University of Tokyo, Tokyo 113-0033 (Japan)
2. Institute for the Physics and Mathematics of the Universe, University of Tokyo, Chiba 277-8568 (Japan)

Gauge mediation models have two drawbacks, that is, the so-called {mu} problem and a lack of predictability of the gravitino dark matter abundance. We show that conformal sequestering in the supersymmetry breaking sector offers attractive solutions to both problems. The correct mass scale of the {mu} and B{sub {mu}} terms is generated by taking the gravitino mass of O(100) GeV. This opens up a possibility that a neutralino, instead of gravitino, is the lightest supersymmetric particle and a candidate for dark matter, even in the gauge mediation. Surprisingly, a large anomalous dimension of the supersymmetry breaking field can naturally realize the small stau and neutralino mass difference required for the coannihilation to work yielding the right abundance of the neutralino dark matter.

• OSTI ID: 21254316
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 78; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANOMALOUS DIMENSION
GAUGE INVARIANCE
GEV RANGE
MASS
MASS DIFFERENCE
MATHEMATICAL SOLUTIONS
NONLUMINOUS MATTER
SPARTICLES
SYMMETRY BREAKING