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Pion pair production in photon-photon collisions at spear

  • Author(s): Roussarie, A
  • Burke, DL
  • Abrams, GS
  • Alam, MS
  • Blocker, CA
  • Blondel, A
  • Boyarski, AM
  • Breidenbach, M
  • 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
  • Kadyk, JA
  • Lankford, AJ
  • Larsen, RR
  • Levi, M
  • Lüth, V
  • Millikan, RE
  • Nelson, ME
  • Pang, CY
  • Patrick, JF
  • Perl, ML
  • Richter, B
  • 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

We report a measurement of the cross section for the process γγ→π π at invariant masses 500 MeV/c < m <2000 MeV/c . A value for the radiative width of the f(1270) tensor meson Γ = 3.6 ± 0.3 ± 0.5 KeV (helicity λ = 2) has been obtained from a fit to the observed ππ mass spectrum. © 1981. + - 2 2 ππ f→γγ

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