ep - p h / 03 08 06 9 v 1 6 A ug 2 00 3 General analysis of CP violation in polarized b → d l + l − decay

ar X iv : h ep - p h / 03 08 18 0 v 1 1 8 A ug 2 00 3 Phenomenology of New Physics 1 LMU 17 / 03 August 2003 Gudrun

I review the phenomenology of new physics in low energy processes using the notion of minimal flavor violation (vs. non-minimal flavor violation). I compare the predictions of beyond-the-standard models and show that among certain observables in rare b-decays pattern arise, which allow to distinguish between extensions of the Standard Model. I discuss the status and future of the model independ...

ep - p h / 99 06 47 3 v 1 2 3 Ju n 19 99 Exclusive Λ b → Λ l + l − decay in two Higgs doublet model

Rare Λb → Λl+l− decay is investigated in framework of general two Higgs doublet model, in which a new source of CP violation exists (model III). The polarization parameter, CP asymmetry and decay width are calculated. It is shown that CP asymmetry is a very sensitive tool for establishing model III. e-mail: [email protected] e-mail: [email protected]

ar X iv : h ep - e x / 06 10 08 9 v 1 3 1 O ct 2 00 6 Universality and Lepton Flavor Violation in Υ Decays at CLEO

I present two analyses done with the CLEOIII detector at CESR. The first is a search for the LFV decay Υ → µτ with preliminary results, and the second constrains Lepton Universality in Υ → τ τ relative to Υ → µµ. This second analysis, whose results are final, has dramatically improved uncertainties relative to other such measurements, and is also the first observation of the decay Υ(3S) → τ τ. ...

ar X iv : h ep - p h / 06 07 28 2 v 2 4 A ug 2 00 6 Precision Tests of Flavor and CP Violation in B Decays ∗

Two major purposes of high statistics experiments studying B and Bs decays in e e and hadron colliders are: (1) Achieving great precision in Cabibbo-Kobayashi-Maskawa parameters [1], in particular determining the CP violating phase, the source of CP violation in the Standard Model. (2) Identifying potential inconsistencies by over-constraining these parameters. For instance, the phase β ≡ φ1 ≡ ...

ar X iv : h ep - p h / 04 08 06 5 v 1 4 A ug 2 00 4 Study of the semileptonic decay