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Observations of S* → π+π-in ψ decay

  • Author(s): Gidal, G;
  • Goldhaber, G;
  • Guy, JG;
  • Millikan, RE;
  • Abrams, GS;
  • Alam, MS;
  • Blocker, CA;
  • Blondel, A;
  • Boyarski, A;
  • Breidenbach, M;
  • Burke, DL;
  • Carithers, WC;
  • Chinowsky, W;
  • Coles, MW;
  • Cooper, S;
  • Dieterle, WE;
  • Dillon, JB;
  • Dorehbosch, J;
  • Dorfan, JM;
  • Eaton, MW;
  • Fe, GJ;
  • Franklin, MEB;
  • Hanson, G;
  • Hayes, KA;
  • Himel, T;
  • Hitlin, DG;
  • Hollebeek, R;
  • Innes, W;
  • Jaros, J;
  • Jenni, P;
  • Johnson, AD;
  • Kadyk, JA;
  • Lankford, AJ;
  • Larsen, RR;
  • Luth, V;
  • Nelson, ME;
  • Pang, CY;
  • Patrick, JF;
  • 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
  • et al.
Abstract

Copious production of S* decaying into π+π- is observed in ψ decay. (974 ± 4 -i14 ± 5) MeV, consistent with the parameters extracted from couplede channel; fits to pheripheral π+π- and K+K- production experiments. The inclusive branching ratio for ψ → S* + X is found to be (0.42 ± 0.08)%. © 1981.

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