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Origin of Matter and N-Nbar Oscillations: Towards Understanding Baryogenesis

Explore the theoretical framework of baryon number violation in the standard model through N-Nbar oscillations and post-sphaleron baryogenesis mechanisms. Investigate possible B-violating couplings and decay models, with predictions on fermionic N CP asymmetry and dark matter scenarios. Discuss "standard" dark matter in minimal SUSY and unified models, including N decay and CP asymmetry effects. Delve into the proposal for B generation and unified dark matter model while highlighting model predictions and implications. Conclude with a summary of dark matter oscillations and baryogenesis concepts.

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Origin of Matter and N-Nbar Oscillations: Towards Understanding Baryogenesis

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  1. Origin of Matter and N-Nbar Oscillations K.S. Babu Oklahoma State University DUSEL Theory Workshop Ohio State University April 4-6, 2008 K.S. Babu, R.N. Mohapatra, S. Nasri, Phys. Rev. Lett. (2007) K.S. Babu, R.N. Mohapatra, S. Nasri, Phys. Rev. Lett. (2006)

  2. Motivation ♦ ♦ ♦

  3. Baryon Number Violation in Standard Model ♦ ♦ ‘t Hooft (1976) ♦ ♦ Kuzmin, Rubakov, Shaposhnikov (1985)

  4. Sphalerons and Baryogenesis ♦

  5. Popular B generation mechanisms

  6. N-Nbar Oscillations and Baryogenesis

  7. Post-sphaleron baryogenesis

  8. Possible B violating couplings

  9. S couplings

  10. Explicit Model

  11. B violating decay of S

  12. CP Asymmetry

  13. Model Predictions

  14. B Violating decays of Fermionic N

  15. CP asymmetry

  16. Dark Matter

  17. n-nbar oscillations

  18. Summary and Conclusions

  19. “Standard” Picture

  20. Dark Matter in Minimal SUSY

  21. Bino LSP Thin blue strip – dark matter allowed Ellis, Olive, Santoso (2003)

  22. Arkani-Hamed, Delgado, Guidice (2006)

  23. Proposal for B generation and Dark Matter

  24. Unified Model

  25. Unified Model (cont.)

  26. N decay

  27. CP asymmetry

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