ar X iv : h ep - p h / 96 06 23 7 v 1 4 J un 1 99 6 Stability Bounds on Flavor - Violating Trilinear Soft Terms in the MSSM ∗

ar X iv : h ep - p h / 96 06 23 5 v 1 4 J un 1 99 6 OITS - 603 On Measuring CP Violating Phase γ Using Neutral B Decays

We propose two independent methods to determine the CKM phase γ and the tree and penguin amplitudes using neutral B decays, assuming that the phase β is known. Based on flavor SU(3) symmetry and SU(3) breaking effect, one method uses the decay processes B 0 (t) → π 0 K S , B 0 → ηK 0 (K S → ππ) and their charge-conjugate processes, and the other uses the processes B 0 (t) → π 0 K S , B 0 → π 0 ...

ar X iv : h ep - p h / 96 06 23 3 v 1 4 J un 1 99 6 Precision Electroweak Constraints on Top - Color Assisted

Using precision electroweak data, we put limits on " natural " top-color assisted technicolor models. Generically the new U (1) gauge bosons in these models must have masses larger than roughly 2 TeV, although in certain (seemingly unrealistic) models the bound can be much lower.

ar X iv : h ep - p h / 95 06 23 9 v 1 5 J un 1 99 5 University of Wisconsin - Madison MADPH - 95 - 892 June 1995 Probing Trilinear

A direct measurement of the trilinear WWγ and WWZ couplings is possible in the pair production of electroweak bosons at e+e− and hadron colliders. This talk addresses some of the theoretical issues: the parameterization of “anomalous couplings” in terms of form factors and effective Lagrangians, the complementary information which can be obtained in e+e− vs. hadron collider experiments, and a n...

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 - p h / 95 06 25 4 v 1 7 J un 1 99 5 Effects of the U A ( 1 ) Anomaly on η → 2 γ Decay

We study the η → 2γ decay using an extended three-flavor Nambu-Jona-Lasinio model that includes the 't Hooft instanton induced interaction. The η meson mass and the η → 2γ decay width are reproduced simultaneously with a rather strong instanton induced interaction. The calculated η decay constant is f η = 2.23f π and it suggests that the η meson is no longer the Goldstone boson.