First measurement of the reaction π−e → π−π0e

• DOI: 10.1016/0370-2693(85)91603-x
• Publication Date: 2003-02-05T00:22:46Z
• Authors: S.R. Amendolia; M. Arik; B. Badelek; G. Batignani; G.A. Beck; E.H. Bellamy; E. Bertolucci; G. Bologna; S. Bonetti; L. Bosisio; C. Bradaschia; M. Budinich; B. D'Ettorre Piaz...; F.L. Fabbri; F. Fidecaro; L. Foà; E. Focardi; S.G.F. Frank; M.A. Giorgi; M.G. Green; J. Harvey; G.P. Heath; M.P.J. Landon; P. Laurelli; F. Liello; G. Mannocchi; P.V. March; P.S. Marrocchesi; A. Menzione; E. Meroni; E. Milotti; L. Moroni; L. Perasso; P. Picchi; F. Ragusa; G. Raso; L. Ristori; L. Rolandi; C.G. Saltmarsh; A. Saoucha; A. Scribano; P. Spillantini; A. Stefanini; D. Storey; J.A. Strong; R. Tenchini; G. Tonelli; G. Triggiani; W. Von Schlippe; M. Vittone; E. Van Herwijnen; A. Zallo
• Keywords: Scattering cross-section

The first observation of neutral pion production in πe inelastic scattering is presented. The cross section at 300 GeV for |t>62;10−3 (GeV / c)2 is 2.11 ± 0.47 nb, in good agreement with the theory of PCAC anomalies with 3 quark colours.