Coherent Pion Photoproduction on Deuterium

On the Determination of the Isotensor Electromagnetic Current from Pion Photoproduction*

Some consequences of an isotensor component of the electromagnetic current are examined in simple pion photoproduction. An experiment to detect the isotensor contribution, in pion photoproduction from deuterium already suggested by several authors, is reformulated to improve the sensitivity of the test. To estimate how accurately the experiment should be performed, upper bounds on the strength ...

Influence of realistic deuteron wave functions on neutral pion photoproduction cross sections

2014 The differential cross-section for neutral pion photoproduction from deuterium, near the first resonance region, at fixed momentum transfer, is studied using realistic deuteron wave functions and the results are compared with recent experimental data from Orsay. LE JOURNAL DE PHYSIQUE TOME 34, AOUT-SEPTEMBRE 1973, Classification Physics Abstracts 10.63 12.31

New developments in threshold pion photo- and electroproduction

Photoproduction of neutral and charged pions off nucleons and deuterium has been precisely calculated in baryon chiral perturbation theory. I review the predictions in light of the accurate data that have become available over the last few years. Some progress in the description of neutral pion electroproduction off protons is also discussed.

A pr 1 99 7 Coherent two pion photoproduction on 12 C

We develop the formalism for coherent two pion photoproduction in nuclei and perform actual calculations of cross sections for π − π + and π 0 π 0 photoproduction on 12 C. We find that due to the isospin symmetry the cross section for π 0 π 0 production is very small and has a maximum when the pions propagate together. However, the kinematical region where the energies and polar angles of the t...

COHERENT PHOTOPRODUCTION OF THE q " MESON FROM DEUTERIUM