ar X iv : h ep - p h / 02 09 18 0 v 1 1 7 Se p 20 02 Models of

ar X iv : h ep - e x / 02 09 04 3 v 1 1 8 Se p 20 02 1 Elementary Hadronic Interactions at the CERN SPS

ar X iv : h ep - p h / 02 09 33 2 v 1 2 7 Se p 20 02 1 K → ππ Electroweak Penguins in the Chiral Limit

We report on dispersive and finite energy sum rule analyses of the electroweak penguin matrix elements (ππ)2|Q7,8|K 0 in the chiral limit. We accomplish the correct perturbative matching (scale and scheme dependence) at NLO in αs, and we describe two different strategies for numerical evaluation.

ar X iv : h ep - p h / 02 09 34 6 v 1 2 8 Se p 20 02 B → ργ Decay in the Large Energy Effective Theory

ar X iv : h ep - t h / 02 09 19 2 v 1 2 3 Se p 20 02 QUANTUM MECHANICAL MIRROR SYMMETRY , D BRANES , AND B FIELDS

We construct quantum mechanical models which mimic many features of string theory. We use these models to gain improved descriptions of B fields and gerbes. We examine the analogs of T duality, D branes, and mirror symmetry in these models and derive quantum mechanical analogs of standard phenomena, such as the noncommutative geometry induced by a B field.

ar X iv : h ep - p h / 02 09 22 3 v 1 1 9 Se p 20 02 1 On the scalar nonet lowest in mass

The hypothesis that there exists a nonet of scalars mainly composed of a valence quark-antiquark pair and mixed according to near singlet-octet separation : f0(980) singlet, a (1430) f0(1500) octet, is put to further tests from the three body decays D ± , D