- Matteuzzi, C;
- Abrams, GS;
- Amidei, D;
- Blocker, CA;
- Boyarski, AM;
- Breidenbach, M;
- Burke, DL;
- Chinowsky, W;
- Dieterle, WE;
- Dillon, JB;
- Dorfan, JM;
- Eaton, MW;
- Feldman, GJ;
- Granklin, MEB;
- Gidal, G;
- Gladney, L;
- Gold, MS;
- Goldhaber, G;
- Golding, LJ;
- Hanson, G;
- Hollebeek, RJ;
- Innes, WR;
- Jaros, JA;
- Johnson, AD;
- Kadyk, JA;
- Lankford, AJ;
- Larsen, RR;
- LeClaire, B;
- Levi, M;
- Lockyer, N;
- Lüth, V;
- Nelson, ME;
- Patrick, JF;
- Perl, ML;
- Richter, B;
- Rowson, PC;
- Schaad, T;
- Schellman, H;
- Schlatter, D;
- Schwitters, RF;
- Sheldon, PD;
- Strait, J;
- Trilling, GH;
- de la Vaissiere, C;
- Yelton, JM;
- Zaiser, C
A search has been made for the inclusive production of J ψ (3.1) and Υ{hooked} (9.4) mesons in e+e- interactions at 29 GeV, via their decay into two leptons. No signal is observed in the J ψ region, nor in the Υ{hooked} region. The limits on the cross sections are σ(e+e- → ψX) < 4.4 × 10-36cm2, and σ(e+e- → Υ{hooked}X) < 4.7 × 10-36 cm2. The same data yield limits on the branching ratios for the b quark BR (b → ψX) < 4.9% and BR (b → ℓ+ℓ-X) < 0.8%. © 1983.
