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B-L Violating Nucleon Decay and GUT Scale Baryogenesis in SO(10)

B-L Violating Nucleon Decay and GUT Scale Baryogenesis in SO(10). K.S. Babu Oklahoma State University. International Workshop on Grand Unified Theories Yukawa Institute of Theoretical Physics, Kyoto, Japan March 15-17, 2012. Outline. Structure of Matter Multiplets. SO(10).

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B-L Violating Nucleon Decay and GUT Scale Baryogenesis in SO(10)

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  1. B-L Violating Nucleon Decay and GUT Scale Baryogenesis in SO(10) K.S. Babu Oklahoma State University International Workshop on Grand Unified Theories Yukawa Institute of Theoretical Physics, Kyoto, Japan March 15-17, 2012

  2. Outline

  3. Structure of Matter Multiplets SO(10) Standard Model

  4. Grand Unification based on SO(10) KB, Gogoladze, Nath, Syed

  5. Minimal SO(10) Models with 126-plet Model has only 11 real parameters plus 7 phases Bertolini, Frigerio, Malinsky (2004) Babu, Macesanu (2005) Bertolini, Malinsky, Schwetz (2006) Dutta, Mimura, Mohapatra (2007) Bajc, Dorsner, Nemevsek (2009) Babu, Mohapatra (1993) Fukuyama, Okada (2002) Bajc, Melfo, Senjanovic, Vissani (2004) Fukuyama, Ilakovac, Kikuchi, Meljanac, Okada (2004) Aulakh et al (2004)

  6. Specific Example for Quark & Lepton masses Fit Input at GUT scale Output: Type II Seesaw Babu, Macesanu (2005)

  7. Non-SUSY SO(10) fit Joshipura, Patel (2011)

  8. Nucleon decay in GUTs Hisano, Murayama, Yanagida (1993) Nath, Perez, Phys. Rept. (2007)

  9. Higgsino Exchange: Sakai, Yanagida (1982) Weinberg (1982)

  10. Baryon number violating effective operators Weinberg (1979) Wilczek, Zee (1979)

  11. B violation beyond the leading order

  12. Origin of d = 7 operators in SO(10) Aulkh, Girdhar (2004) Fukuyama et. al (2004) Nath, Syed (2001)

  13. Yukawa coupling in SO(10) (cont.)

  14. Scalar exchange for d = 7 operators

  15. d = 7 operators from 120 exchange

  16. d = 7 operators from gauge boson exchange

  17. B-L violating nucleon decay rates

  18. Intermediate scale in non-SUSY SO(10) Mohapatra, Parida (1992) Pal, Keith, Deshpande (1992)

  19. Revival of GUT scale Baryogenesis

  20. B-L asymmetry in scalar decays

  21. B-L asymmetry in scalar decays (cont.)

  22. B-L asymmetry from gauge boson decays

  23. B-L asymmetry in SUSY models

  24. Summary and Conclusions

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