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32 papers · 2 filters
Sneutrino Cold Dark Matter With Lepton-Number Violation
Lawrence J. Hall, Takeo Moroi, Hitoshi Murayama
The tau sneutrino is proposed as a candidate for galactic halo dark matter, and as the cold dark matter (CDM) component of the universe. A lepton-number-violating sneutrino mass, \…
Dynamical Electro-Weak Symmetry Breaking with a Standard Model Limit
Manfred Lindner, Erhard Schnapka
We argue that a Standard Model decoupling limit is generically the necessary ingredient which makes scenarios of electro-weak symmetry breaking viable. This applies especially also…
Next-to-Minimal Supersymmetric Standard Model with the Gauge Mediation of Supersymmetry Breaking
Andre de Gouvea, Alexander Friedland, Hitoshi Murayama
We study the Next-to-Minimal Supersymmetric Standard Model (NMSSM) as the simplest candidate solution to the -problem in the context of the gauge mediation of supersymmetry brea…
Alternative Theories of CP violation
Riccardo Barbieri, Lawrence Hall, Achille Stocchi +1
Recent improvements to the limit of Delta M_{B_s} imply that pure superweak theories, while not excluded, no longer provide a good fit to the data. A class of general superweak the…
Tevatron Signatures of Long-lived Charged Sleptons in Gauge-Mediated Supersymmetry Breaking Models
Jonathan L. Feng, Takeo Moroi
In supersymmetric models with gauge-mediated supersymmetry breaking, charged sleptons are the next lightest supersymmetric particles and decay outside the detector for large region…
Composite Quarks and Leptons from Dynamical Supersymmetry Breaking without Messengers
Nima Arkani-Hamed, Markus A. Luty, John Terning
We present new theories of dynamical SUSY breaking in which the strong interactions that break SUSY also give rise to composite quarks and leptons with naturally small Yukawa coupl…