On the extraction of cross sections for π{sup 0} and η photoproduction off neutrons from deuteron data

We discuss the procedure of extracting the photoproduction cross section for neutral pseudoscalar mesons off neutrons from deuteron data. The main statement is that the final-state-interaction corrections for the proton and neutron target are in general not equal, but for π{sup 0} production there a...

Full description

Saved in:
Bibliographic Details
Published in:Physics of atomic nuclei 2016-03, Vol.79 (2)
Main Authors: Tarasov, V. E., Briscoe, W. J., Dieterle, M., Krusche, B., Kudryavtsev, A. E., Ostrick, M., Strakovsky, I. I.
Format: Article
Language:English
Subjects:
ATOMIC AND MOLECULAR PHYSICS
CORRECTIONS
CROSS SECTIONS
DEUTERONS
ENERGY RANGE
EXCITATION
FINAL-STATE INTERACTIONS
FUNDAMENTAL INTERACTIONS
ISOSPIN
MATHEMATICAL SPACE
NEUTRONS
PHOTONS
PHOTOPRODUCTION
PSEUDOSCALAR MESONS
RESONANCE
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We discuss the procedure of extracting the photoproduction cross section for neutral pseudoscalar mesons off neutrons from deuteron data. The main statement is that the final-state-interaction corrections for the proton and neutron target are in general not equal, but for π{sup 0} production there are special cases where they have to be identical and there are large regions in the parameter space of incident photon energy and pion polar angle, Θ*, where they happen to be quite similar. The corrections for both target nucleons are practically identical for π0 production in the energy range of the Δ(1232)3/2+ resonance due to the specific isospin structure of this excitation. Also above the Δ-isobar range large differences between proton and neutron correction factors are only predicted for extreme forward angles (Θ* *lt; 20°), but the results are similar for larger angles. The case of η photoproduction is also briefly considered. Numerical results for the γp → π{sup 0}p and γn → π{sup 0}n correction factors are discussed. Also the model description for the available data on the differential γd → π{sup 0}pn cross sections are given.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778816020186