Embed Zee Neutrino Mass Model into SUSY

In this talk, I summarize a work done in collaboration with Otto Kong on the Zee neutrino mass model. We show that the MSSM with explicit R-parity violation actually contains the Zee model with the right-handed sleptons as the Zee singlet. We determine the conditions on the parameter space such that the neutrino mass matrix provides a viable texture that explains the atmospheric and solar data.Comment: 11 pages, invited talk given at 5th International Workshop on Particle Phyiscs Phenomenology, Chi-Pen, Taitung, Taiwan, 8-11 Nov 200

Recent Progress on Perturbative QCD Fragmentation Functions

The recent development of perturbative QCD (PQCD) fragmentation functions has strong impact on quarkonium production. I shall summarize $B_c$ meson production based on these PQCD fragmentation functions, as well as, the highlights of some recent activities on applying these PQCD fragmentation functions to explain anomalous $J/\psi$ and $\psi'$ production at the Tevatron. Finally, I discuss a fragmentation model based on the PQCD fragmentation functions for heavy quarks fragmenting into heavy-light mesons.Comment: 13 pages and 6 Postscript figures, Standard LaTeX. Complete Postscript version can be found at http://www.ph.utexas.edu/~cheung/paper/hopkin/hopkin-hep.ps.gz Invited talk at PASCOS/HOPKINS 1995 Symposium, Johns Hopkins University, Baltimore, Maryland, March 22--25, 199