1. Ohio State DUSEL Theory Workshop Stuart Raby Underground Detectors Investigating Grand Unification Brookhaven National Lab October 16, 2008

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3. 3 Targeted for NSF National Science Board, members of Congress and their staff

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9. 9 Virtues of SUSY GUTs  M Z << M GUT “Natural”  Explains charge quantization  Predicts gauge coupling unification !! redicts SUSY particles at LHC

10. Title of talk10 Grand Unification - SO( 10 ) GUT spinor repsn. of SO( 10 ) tensor product of 5 spin ½ w/even no. - signs Georgi Fritszch & Minkowski

11. Title of talk11 Gauge coupling unification !! S. Dimopoulos, S.R. & F. Wilczek LEP data !!

12. Title of talk12 Supersymmetric partners of SM particles Quarks & Leptons Squarks & Sleptons Gluons, W +, Z 0,  Higgs bosons Gluinos, Charginos, Neutralinos Lightest super symmetric particle ( LSP ) is stable (assuming R parity) Perfect Dark Matter Candidate ! Tevatron or LHC at CERN 2009 SUSY light Higgs

13. Title of talk13 Virtues of SUSY GUTs  Predicts proton decay Is it predominantly due to  Vector boson exchange ?  Color triplet Higgsino exchange ?

14. Title of talk14 The answer depends on - 4 dimensional SUSY GUTs vs 5 or 6 dimensional Orbifold SUSY GUTs and / or 10 D string theory

15. Title of talk15 4 dimensional SUSY GUTs

16. Title of talk16 V ector boson exchange ~ 1/M G 2

17. Title of talk17 Non-SUSY GUT -- M G ~ 10 15 GeV EXCLUDED ! SUSY GUT -- M G ~ 10 16 GeV OK !! Super-Kamiokande bound

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19. Title of talk19 Higgsino exchange dominates ~ 1/M T    G  ln (M T / M G ) M T ~ 10 14 GeV A( p K +  ) ~ C C x loop factor M T Minimal SUSY SU(5) Proton decays toooo fast !!

20. Title of talk20 Threshold corrections due to Higgs doublet-triplet splitting (positive) & GUT breaking sector (negative) G.C. Unif. & Proton decay 4D    G  ln (M T eff / M G ) +   (GUT B.S.) Dermisek et al., Babu et al., Altarelli et al.

21. Title of talk21 5 or 6 dimensional Orbifold SUSY GUTs and 10 D string theory

22. Title of talk22 SU 5 Orbifold GUT on M 4 x S 1 /(Z 2 xZ 2 ’) Higgs bosons

23. Title of talk23 5D Orbifold GUT G.C. Unif. & Proton decay > 4D 0 RR M c ~  R < M G < M * Dienes et al., Hall & Nomura, Kim & S.R., Feruglio et al.

24. Title of talk24 5D Orbifold GUT G.C. Unif. & Proton decay > 4D 0 R M c ~ 1/R < M G < M * Dim 6 amp. ~ 1 / M c 2 McMc Enhanced !!

25. Title of talk25 5D Orbifold GUT G.C. Unif. & Proton decay > 4D 0 R M c ~ 1/R < M G < M * Dim 6 amp. ~ 1 / M c 2 McMc Suppressed !! Bul k

26. Title of talk26 5 or 6 dimensional Orbifold SUSY GUTs Vector boson exchange rate - typically enhanced ! Higgsino exchange rate - suppressed !

27. Title of talk27 5D Orbifold GUT G.C. Unif. & Proton decay > 4D 0 R M c ~ 1/R < M G < M * String / Orbifold GUTs SU 6 SU 5 SM Bulk = Untwisted sector Brane = Twisted sector Proton decay rate ‘typically’ enhanced !

28. Title of talk28 5D Orbifold GUT G.C. Unif. & Proton decay > 4D 0 R M c ~ 1/R < M G < M * The Bottom Line 4D SUSY GUTs Higgsino exchange dominates 5-6D Orbifold SUSY GUTs Both processes may compete

29. Title of talk29 Virtues of SUSY GUTs  Predicts Yukawa coupling unification  w/Family symmetry Fermion mass hierarchy  Neutrino masses and mixing via See-Saw

30. Title of talk30 Eg. SO(10) x [ D 3 x U(1) family sym. ] Dermisek & S.R. hep-ph/0507045 7 real para’s + 4 phases + 3 real Majorana Neutrino masses

31. Title of talk31 Dermisek, Harada & Raby, hep-ph/0606055

32. Title of talk32 0.68 (0.03)

33. Title of talk33 NOT in    fit

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35. Title of talk35 Albright & Chen hep-ph/0608137

36. Title of talk36 Virtues of SUSY GUTs  Baryogenesis via leptogenesis Right-handed neutrino decays (+ CP viol.) creating lepton asymmetry Lepton asymmetry converted to baryon asymmetry via electroweak int’s Expect low energy leptonic CP violation !

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39. Title of talk39 Virtues of SUSY GUTs  LSP - Dark Matter candidate Expect direct detection of Dark Matter !

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41. Title of talk41 We need a distribution list for announcing the white paper The White paper also has sections on Neutrinoless double beta decay & N-Nbar oscillations Conclusions

42. Title of talk42 Megaton Observatory for Neutrinos & Nucleon Decay MONND A large Megaton multi-purpose water Cherenkov detector needs a catchy name My suggestion Finally