Abstract
The Σ beam asymmetry in the photoproduction of neutral pions from quasi-free nucleons in a deuteron target was measured for the first time between 0.60 and 1.50GeV, with the GRAAL polarized and tagged photon beam. The asymmetry values from the quasi-free proton were found equal to the ones extracted from a pure proton target. The asymmetries from quasi-free proton and quasi-free neutron were found equal up to 0.82GeV and substantially different at higher energies. The results are compared with recent partial-wave analyses.
Original language | English |
---|---|
Pages (from-to) | 151-157 |
Number of pages | 7 |
Journal | European Physical Journal A |
Volume | 42 |
Issue number | 2 |
DOIs | |
Publication status | Published - Nov 2009 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics