6533b871fe1ef96bd12d0e3b

RESEARCH PRODUCT

The pion electroproduction and the virtual-photon theory

K. RöhrichC. SchmittV.h. Walther

subject

Nuclear physicsPhysicsParticle physicsPionPhotonNuclear TheorySpectrum (functional analysis)Virtual particleHigh Energy Physics::ExperimentNuclear Experiment

description

The double differential cross-section for pion electroproduction was measured for the processes p(e,π+n and12C(e,π+)12B. The proton-induced cross-section was evaluated by using the virtual-photon concept. The experimental data were used to test different formulae for the virtual-photon spectrum. We found significant deviations to a generally used formula (Dalitz-Yennie) and good agreement with a new formula (Tiator-Wright). In addition, we have measured pion production crosssections with real photons under equal kinematic conditions. Electro-and photoproduction measurements give the same results.

yearjournalcountryeditionlanguage
1983-07-01Il Nuovo Cimento A
https://doi.org/10.1007/bf02833737