ar X iv : h ep - p h / 95 07 29 2 v 1 1 2 Ju l 1 99 5 The Crucial Role of ωπ + Production in the D + s Decay

ar X iv : h ep - p h / 01 02 20 2 v 2 1 7 Fe b 20 01 YITP - 01 - 9 On the D + → ωπ + decay

The D+ → ωπ+ decay is studied by decomposing its amplitude into a sum of factorizable and non-factorizable ones. Its rate is predicted as a function of mass and width of a hypothetical hybrid meson. PACS number(s): 13.25.Ft, 11.30.Hv, 11.40.Ha, 12.39.Mk Typeset using REVTEX

ar X iv : h ep - e x / 04 06 03 8 v 1 1 5 Ju n 20 04 The σ pole in J / ψ → ωπ + π −

Using a sample of 58 million J/ψ events recorded in the BESII detector, the decay J/ψ → ωπ+π− is studied. There are conspicuous ωf2(1270) and b1(1235)π signals. At low ππ mass, a large broad peak due to the σ is observed, and its pole position is determined to be (541 ± 39) i (252 ± 42) MeV from the mean of six analyses. The errors are dominated by the systematic errors. PACS: 13.25.Gv, 14.40.G...

ar X iv : h ep - p h / 94 07 37 5 v 1 2 6 Ju l 1 99 4 Scaling Relation for Leptonic Constants of Higher Excitations in Heavy Quarkonium

Introduction

ar X iv : h ep - t h / 95 07 17 2 v 1 3 1 Ju l 1 99 5 Quantum Corrections to the Semiclassical Quantization of the SU ( 3 ) Shell Model

ar X iv : h ep - p h / 95 01 29 1 v 2 4 A pr 1 99 5 EFI - 95 - 02 January 1995 hep - ph / 9501291 CHARM AND BEAUTY IN PARTICLE PHYSICS

The spectra of states containing charmed and beauty quarks, and their regularities, are reviewed.