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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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