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Evidence for a spin-1 resonance in the reaction gamma gamma *-->K0K+/- pi +/-

  • Author(s): Gidal, G
  • Boyer, J
  • Butler, F
  • Cords, D
  • Abrams, GS
  • Amidei, D
  • Baden, AR
  • Barklow, T
  • Boyarski, AM
  • Burchat, P
  • Burke, DL
  • Dorfan, JM
  • Feldman, GJ
  • Gladney, L
  • Gold, MS
  • Goldhaber, G
  • Golding, LJ
  • Haggerty, J
  • Hanson, G
  • Hayes, K
  • Herrup, D
  • Hollebeek, RJ
  • Innes, WR
  • Jaros, JA
  • Juricic, I
  • Kadyk, JA
  • Karlen, D
  • Klein, SR
  • Lankford, AJ
  • Larsen, RR
  • LeClaire, BW
  • Levi, ME
  • Lockyer, NS
  • Lüth, V
  • Matteuzzi, C
  • Nelson, ME
  • Ong, RA
  • Perl, ML
  • Richter, B
  • Riles, K
  • Rowson, PC
  • Schaad, T
  • Schellman, H
  • Schmidke, WB
  • Sheldon, PD
  • Trilling, GH
  • de la Vaissière C
  • Wood, DR
  • Yelton, JM
  • Zaiser, C
  • et al.
Abstract

We confirm the observation of a spin-1 resonance at 1423 MeV in the KS0K± system produced in single-tagged two-photon interactions. The Dalitz plot indicates that this resonance decays primarily via a K*K intermediate state. We measure a radiative width times branching ratio BKK»(M2/Q2)*=3.2±1.4±0.6 keV on the assumption of a -pole form factor. © 1987 The American Physical Society.

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