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