ar X iv : h ep - p h / 95 11 24 1 v 1 5 N ov 1 99 5 Excited Charmed Baryon Decays and Their Implications for Fragmentation Parameters *

ar X iv : h ep - p h / 95 11 26 8 v 1 8 N ov 1 99 5 TTP 95 - 39

We review current issues in exclusive semileptonic tau decays. We present the formalism of structure functions, and then discuss predictions for final states with kaons, for decays into four pions and for radiative corrections to the decay into a single pion.

ar X iv : h ep - p h / 97 02 25 7 v 1 5 F eb 1 99 7 The Charm of the Proton and the Λ + c Production 1

We propose a two component model for charmed baryon production in pp collisions consisting of the conventional parton fusion mechanism and fragmentation plus quarks recombination in which a ud valence diquark from the proton recombines with a c-sea quark to produce a Λ + c. Our two-component model is compared with the intrinsic charm two-component model and experimental data.

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.

ar X iv : h ep - p h / 02 11 38 2 v 1 2 5 N ov 2 00 2 Gold - plated Mode of CP - Violation in Decays of Ξ bc Baryons

ar X iv : h ep - p h / 92 11 30 6 v 1 2 5 N ov 1 99 2 QCD RESULTS FOR NUCLEON COMPTON SCATTERING

We present QCD results for the exclusive processes γN → γN (N = p, n) at large momentum transfer and compare them to data for the proton.