Phys. Rev. C 63, 024614 (2001) [7 pages]Charged pion-pair photoproduction and electroproduction on the proton up to 1 GeVReceived 29 June 2000; published 24 January 2001 An effective Lagrangian approach for double pion photoproduction and electroproduction on the proton developed by the Valencia group is improved in a covariant relativistic way. We obtain reasonable agreement with available experimental data for charged pion-pair channel from threshold up to 1 GeV. The role of the D13(1520) resonance in this channel as an intermediate state is also discussed. This approach is applied to calculate the π- inclusive cross section. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.63.024614
DOI:
10.1103/PhysRevC.63.024614
PACS:
25.20.Lj, 13.60.Le, 13.60.Rj
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