"The World as Brane and Representation"

I shall discuss the features of gauge theories on D3-branes located at orbifold singularities and will present a consistent string theory realization of the Standard Model in one such context. I explore some features of the phenomenology of this proposal. There are natural mass hierarchies in the fermion spectrum and several possible experimental signatures.

No detailed knowledge of string theory will be assumed for this talk (although it wouldn't hurt).

"The NuTeV Anomaly, Neutrino mixing, and a Heavy Higgs."

Recent data from NuTeV prefer a heavy Higgs in contrast to the LEP/SLD data which prefer a light Higgs. I will argue that if the Zνν coupling is suppressed, as would be the case if the neutrinos mixed with a heavy gauge singlet state, then both sets of data will be consistent with a heavy Higgs. If the Higgs in indeed heavy, it could mean the death of SUSY theories.

"Measuring the CP-violating phase by a long base-line neutrino experiment with Hyper-Kamiokande"

We study the sensitivity of a long-base-line (LBL) experiment with neutrino beams from the High Intensity Proton Accelerator (HIPA), that delivers 10²¹ protons on target per year, and a proposed 1 Mega-ton water-Cherenkov detector, Hyper-Kamiokande (HK) 295km away from the HIPA, to the CP phase (δ_MNS) of the three-flavor lepton mixing matrix.

We examine a combination of the ν_µ narrow-band beam (NBB) at two different energies, <p_π>=2 and 3 GeV, and the anti-ν_µ NBB at <p_π>=2 GeV. By allocating one year each for the two ν_µ beams and four years for the anti-ν_µ beam, we can efficiently measure the ν_µ → ν_e and anti-ν_µ → anti-ν_e transition probabilities, as well as the ν_µ and anti-ν_µ survival probabilities.

CP violation in the lepton sector can be established at the 4σ (3σ) level if the MSW large-mixing-angle scenario of the solar-neutrino deficit is realized, |δ_MNS| or |δ_MNS-180| > 30, and if 4|U_e3|² (1-|U_e3|²) = sin² 2θ_CHOOZ > 0.03 (0.01). The phase δ_MNS is more difficult to constrain by this experiment if there is little CP violation, δ_MNS ~ 0 or 180, which can be distinguished at the 1σ level if sin² 2θ_CHOOZ > 0.01.

"Experimental Status of Hadron Form Factors"

"Quantum Mechanics and General Covariance"

Please note special location!

"The Status of Solar Neutrino Oscillations"

"The Virginia Tech Spectral-Line Survey"

"The Hydrogen Atom Spectrum with the Minimal Length Uncertainty Relation"

"Multi-trace superpotentials and Matrix models"

"The W Mass and the U parameter"

"Scale Invariance and Phase Transitions in Diffusion-Limited Reactions, Part 2"

"Gauge/Gravity Duals with Flavor"

On the Hydrogen Atom with Minimal-length Uncertainty Relations