International Workshop on Grand Unified Theories: Current Status and Future Prospects

Session

Plenary Talks

17 Dec 2007, 14:00

Epoch Ritsumei 21 (Ritsumeikan University)

61. Differentiating Neutrino Models on the Basis of the Reactor Angle and Lepton Flavor Violation

Prof. Carl. H. Albright (Northern Illinois University and Fermilab)

17/12/2007, 14:00

An earlier survey of viable neutrino mass and mixng models revealed a broad spectrum of predicted valies for sin^2 (theta_13) ranging fom the present upper bound of 0.04 accessible to the next round of reactor neutrino experiments down to values less than 0.001 requiring a neutrino factory for observation. Here we single out models with similar theta _13 predictions ad show that the viability...

62. Nucleon sigma term from lattice QCD

Prof. Tetsuya Onogi (YITP, Kyoto University)

17/12/2007, 14:50

There has been renewed interest in the nucleon sigma term - the scalar form factor of the nucleon at zero recoil- since it determines the dark matter reaction rate with nucleon through the t-channel Higgs boson exchange. Despite its importance and its long history of theoretical studies, there are still substantial uncertanties. We present our recent studies of the nucleon sigma term based on...

64. Proton decay in SO(10) with stabilized doublet-triplet splitting

Prof. Kaladi. S. Babu (Oklahoma State University)

17/12/2007, 16:10

92. New Physics in Colliders

Dr Nobuchika Okada (KEK)

17/12/2007, 17:00

86. How to Evade a NO-GO Theorem in Flavor Symmetries

Prof. Yoshio Koide (Osaka University)

17/12/2007, 17:50

We may expect that an approach based on symmetries will be a powerfulinstrument for investigating the origin of the flavors. However, when we want to introduce a symmetry (discrete one, U(1), and any others) into our mass matrix model, we always encounter an obstacle, the so-called No-Go theorem in flavor symmetries (YK, Phys.Rev. D71 (2005) 016010). In the present talk, I would like to talk...