Author: Stephen P. Pappas (Yale University), The CDF Collaboration
Title: Recent b-Physics Results from CDF
Abstract: As part of a broad program in b-physics, CDF has recently completednew measurements of the b-quark fragmentation fractions, performed asearch for the rare decays B+ --> K+ mu+ mu- and B0 --> K*0 mu+ mu-,and measured the polarization in the decays B --> V V. Previouslyreported fragmentation fractions are dominated by LEP results; CDF nowadds measurements fu == fd = 37.1% +/- 2.4%, fs = 16.6% +/- 4.6%,fBaryon = 9.1% +/- 3.0% in an analysis of semi-leptonic decays, andthe ratio fs/(fu + fd) = 20.1% +/- 3.5% +3.9% -3.3% in an independentanalysis of sequential semileptonic decays. CDF's rare decay limits,B(B+ --> K+ mu+ mu-) < 5.2e-6 and B(B0 --> K*0 mu+ mu-) < 4.0e-6 at90% confidence level, are the most stringent to date. Finally, thepolarization analysis for the decay modes B --> J/psi K* and Bs -->J/psi phi provides highly competitive results for the former mode andthe first "full" analysis of the latter mode:
Comments: 7 pages, LaTeX; uses: REVTeX v. 3.1, revtex.sty v. 3.1, aps.sty v. 3.0, aps10.sty, v3.0, prabib.sty, v3.0, epsf.sty, revtex.cls (patch).Talk Number: 3-04 (Session 3a, talk 04)Subject: Heavy Flavor Physics, Experiment