IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
''Pion production in antineutrino scattering by free nucleons and neutral currents''
Autor/es:
A. MARIANO
Lugar:
Facultad Ciencias Exactas, UBA, Bs. As.
Reunión:
Congreso; AFA-SUF 2008; 2008
Institución organizadora:
Asociación Física Argentina y Uruguaya
Resumen:
The one pion production in charged current $ u_{mu}N$ scatteringis analyzed within an extended version of a model used previouslyto include the $Delta(1232)$ contribution in elastic andradiative pion nucleon scattering, and in pion photoproduction.Because the resonant amplitude needs to be invariant under contacttransformations, we identify the correct forms of the $Delta$propagator and the  $W^- N Delta$ vertex that are consistent withthis requirement. The only free parameter of the model, the axialform factor at zero momentum transfer, is fixed from data on thedifferential cross section for $ u_{mu}p o mu^-ppi^+$scattering
rds']