ar X iv : h ep - p h / 97 09 24 2 v 1 4 S ep 1 99 7 TUM - HEP - 290 / 97 July 1997 CP Violation in Low - Energy SUSY

4 v 1 4 S ep 1 99 7 TUM - HEP - 291 / 97 July 1997

In this talk we discuss rare B decays (b → sγ, b → sg, b → sℓ + ℓ −), B − ¯ B oscillations and CP violation in B physics in the context of low-energy SUSY. We outline the variety of predictions that arise according to the choice of the SUSY extension ranging from what we call the " minimal " version of the MSSM to models without flavour universality or with broken R-parity. In particular, we pr...

ar X iv : h ep - p h / 97 11 36 4 v 1 1 8 N ov 1 99 7 903 : CP Violation from Charged Higgs Exchange in Hadronic Tau Decays with Unpolarized Beams

CP violating signals in semileptonic τ decays induced by an exotic scalar exchange are studied in a completely model-independent way. These can be observed in decays of unpolarized single τ 's even if their rest frame cannot be reconstructed. No beam polarization is required. The importance of the two-meson channel, in particular the Kπ final state is emphasized.

ar X iv : h ep - t h / 97 09 01 6 v 1 2 S ep 1 99 7 Free boson representation of DY h̄ ( gl N ) k

ar X iv : h ep - p h / 97 12 50 1 v 1 2 3 D ec 1 99 7

We explore the possibility of spontaneous CP violation within the Next to Minimal Supersymmetric Standard Model. In the most general form of the model, without a discrete Z 3 symmetry, we find that even at tree level spontaneous CP violation can occur, while also permitting Higgs masses consistent with experiment.

ar X iv : h ep - p h / 97 09 23 9 v 1 4 S ep 1 99 7 Yukawa Interaction from a SUSY Composite Model

We present a composite model that is based on non-perturbative effects of N = 1 supersymmetric SU(NC) gauge theory with Nf = NC + 1 flavors. In this model, we consider NC = 7, where all matter fields in the supersymmetric standard model, that is, quarks, leptons and Higgs particles are bound states of preons and anti-preons. When SU(7)H hyper-color coupling becomes strong, Yukawa couplings of q...