/ 99 06 28 6 v 1 8 J un 1 99 9 B → X s l + l − decays in supersymmetry

ar X iv : a st ro - p h / 97 06 06 5 v 1 6 J un 1 99 7 Discovery of the X - Ray Afterglow of the Gamma - Ray Burst of February 28 1997

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An isospin analysis of B → ππ decays yields sin 2α, where α is the usual CKM angle α ≡ arg[−V td V * tb /(V ud V * ub)] without hadronic uncertainty if isospin is a perfect symmetry. Yet isospin symmetry is broken not only by electroweak effects but also by the u and d quark mass difference — the latter drives π 0 − η, η ′ mixing and converts the isospin-perfect triangle relation between the B ...

ar X iv : h ep - p h / 96 06 25 9 v 1 6 J un 1 99 6 OITS - 604 , UH - 511 - 851 - 96 Single Isospin Decay Amplitude and CP Violation

We study partial rate asymmetry in decays with single isospin final state. For K meson or hyperon decays, the partial rate asymmetries are always zero if the final states are single isospin states. In B decays the situation is dramatically different and partial rate asymmetries can be non-zero even if the final states are single isospin states. We calculated partial rate asymmetries for several...

ar X iv : h ep - p h / 97 06 30 7 v 1 9 J un 1 99 7 UH - 511 - 872 - 97 WHAT IS SUPERSYMMETRY AND HOW DO WE FIND IT ?

In these Lectures, we present a pedagogical introduction to weak scale supersymmetry phenomenology. A basic understanding of the Standard Model and of the ideas behind Grand Unification, but no prior knowledge of supersymmetry, is assumed. Topics covered include: • What is supersymmetry and why do we bother with it? • Working with a supersymmetric theory: A toy example

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