- Abrams, GS;
- Alam, MS;
- Blocker, CA;
- Boyarski, AM;
- Breidenbach, M;
- Burke, DL;
- Carithers, WC;
- Chinowsky, W;
- Coles, MW;
- Cooper, S;
- Dieterle, WE;
- Dillon, JB;
- Dorenbosch, J;
- Dorfan, JM;
- Eaton, MW;
- Feldman, GJ;
- Franklin, MEB;
- Gidal, G;
- Goldhaber, G;
- Hanson, G;
- Hayes, KG;
- Himel, T;
- Hitlin, DG;
- Hollebeek, RJ;
- Innes, WR;
- Jaros, JA;
- Jenni, P;
- Johnson, AD;
- Kadhk, JA;
- Lankford, AJ;
- Larsen, RR;
- Lüth, V;
- Millikan, RE;
- Nelson, ME;
- Pang, CY;
- Patrick, JF;
- Perl, ML;
- Richter, B;
- Roussarie, A;
- Scharre, DL;
- Schindler, RH;
- Schwitters, RF;
- Siegrist, JL;
- Strait, J;
- Taureg, H;
- Tonutti, M;
- Trilling, GH;
- Vella, EN;
- Vidal, RA;
- Videau, I;
- Weiss, JM;
- Zaccone, H
The inclusive and 0 momentum distributions at the have been measured. Using these data and estimates of production, it is found that (4.1 0.8)% of decays contain a direct photon with energy greater than 60% of the beam energy. The expected momentum distribution for direct photons calculated to lowest order in quantum chromodynamics is qualitatively different from that observed in the data. © 1980 The American Physical Society.
