ar X iv : h ep - t h / 06 05 24 6 v 1 2 5 M ay 2 00 6 Relativistic Wave Equations and Compton Scattering

ar X iv : h ep - p h / 06 05 13 6 v 1 1 1 M ay 2 00 6 Lepton Flavor Violating τ and μ decays

ar X iv : h ep - t h / 06 03 12 5 v 1 1 5 M ar 2 00 6 hep - th / 0603125 ITP – UH – 05 / 06 Noncommutative Instantons on C

We construct explicit solutions of the Hermitian Yang-Mills equations on the noncommutative space C θ . In the commutative limit they coincide with the standard instantons on CP written in local coordinates.

ar X iv : h ep - p h / 05 05 12 3 v 1 13 M ay 2 00 5 Microscopic Description of Deeply Virtual Compton Scattering off Spin - 0 Nuclei

We evaluate within a microscopic calculation the contributions of both coherent and incoherent deeply virtual Compton scattering from a spin-0 nucleus. The coherent contribution is obtained when the target nucleus recoils as a whole, whereas for incoherent scattering break-up configurations for the final nucleus into a an outgoing nucleon and an A−1 system are considered. The two processes enco...

ar X iv : h ep - t h / 06 05 27 4 v 1 2 8 M ay 2 00 6 hep - th / 0605274 Metric and coupling reversal in string theory

Invariance under reversing the sign of the metric G M N (x) and/or the sign of the string coupling field H Universe K contains only F1 and NS5 of IIB and Heterotic SO(32).

ar X iv : h ep - e x / 06 05 04 8 v 1 1 5 M ay 2 00 6 Jet Measurements and Determination of α S at HERA

The strong coupling constant αS can be measured in deep inelastic ep scattering by employing various methods. Recent results on the extraction of αS using jet and event shape observables are presented. The results are found to be in good agreement with other more inclusive measurements and the world average value.