origin of matter and n-nbar oscillations
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DUSEL Theory WorkshopOhio State University
April 4-6, 2008
K.S. BabuOklahoma State University
K.S. Babu, R.N. Mohapatra, S. Nasri, Phys. Rev. Lett. (2007)K.S. Babu, R.N. Mohapatra, S. Nasri, Phys. Rev. Lett. (2006)
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Motivation
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‘t Hooft (1976)
Kuzmin, Rubakov, Shaposhnikov (1985)
Baryon Number Violation in Standard Model
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Sphalerons and Baryogenesis
Popular B generation mechanisms
N-Nbar Oscillations and Baryogenesis
Post-sphaleron baryogenesis
Possible B violating couplings
S couplings
Explicit Model
B violating decay of S
CP Asymmetry
Model Predictions
B Violating decays of Fermionic N
CP asymmetry
Dark Matter
n-nbar oscillations
Summary and Conclusions
“Standard” Picture
Dark Matter in Minimal SUSY
Bino LSP
Ellis, Olive, Santoso (2003)
Thin blue strip – dark matter allowed
Arkani-Hamed, Delgado, Guidice (2006)
Proposal for B generation and Dark Matter
Unified Model
Unified Model (cont.)
N decay
CP asymmetry
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