<?xml version="1.0" encoding="UTF-8"?> <references> <reference> <a1>Andreas, A</a1> <t1>First observation of the Sigma /sub c/*/sup +/ charmed baryon, and new measurements of the Sigma /sub c//sup 0/, Sigma /sub c//sup +/, Sigma /sub c//sup ++/, and Omega /sub c//sup 0/ charmed baryons</t1> <t2/> <sn/> <op/> <vo/> <ab>Using ~13 7 fb/sup -1/ of e/sup +/ e/sup -/ collision data recorded at near the Upsilon (4S) resonance by the CLEO II and CLEO II V detector configurations on the Cornell Electron Storage Ring, we present the world's most precise measurements of the Sigma /sub c//sup 0/, Sigma /sub c//sup +/, and Sigma /sub c//sup ++/ charmed-baryon masses as well as the first measurements of the intrinsic widths of the Sigma /sub c//sup 0/ and Sigma /sub c//sup ++/ + baryons. We also report on the first observation and mass measurement of the Sigma /sub c/*/sup + /, charmed baryon, M( Sigma /sub c/*/sup +/) M( Lambda /sub c//sup +/) = (231 0 +or- 1 1 statu +or- 2 0 systu) MeV/c/sup 2/, and the first CLEO observation of the Omega /sub c//sup 0/ baryon, for which we measure a mass M( Omega /sub c//sup 0/) = (2694 6 +or- 2 6 statu 2 4 systu) MeV/c/sup 2/ from a sample of (40 4 +or- 9 0 statu) candidate events. All new results are preliminary.</ab> <la>eng</la> <k1>Sigma c; Sigma c0; Sigma c; Sigma c; Omega c0; charmed baryon mass; width; electron positron producing hyperon; Upsilon 4S; Lambda c; Sigma c; mass; </k1> <pb/> <pp/> <yr>2001</yr> <ed/> <ul/> <no>Imported from Invenio.</no> </reference> </references>