Abstract
Incoherent pion photoproduction on the deuteron is studied for photon energies from threshold up to 1 GeV, with special emphasis on polarization observables. The elementary γN→πN amplitude is taken from the MAID model. We investigate the influence of final state interactions on total and semi-exclusive cross sections d→(γ→,π)NN by including complete rescattering in the final NN and πN subsystems. For charged-pion production the influence of NN rescattering is moderate whereas πN rescattering is almost negligible. Much stronger influences of NN rescattering are seen in neutral-pion production, which are due to the elimination of a significant spurious coherent contribution in the impulse approximation. Sizable effects are also found in some of the beam, target, and beam-target asymmetries of the differential cross section.
| Original language | English |
|---|---|
| Article number | 064005 |
| Journal | Physical Review C - Nuclear Physics |
| Volume | 72 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Dec 2005 |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Incoherent pion photoproduction on the deuteron with polarization observables. II. Influence of final state rescattering. / Fix, A.; Arenhövel, H.
In: Physical Review C - Nuclear Physics, Vol. 72, No. 6, 064005, 01.12.2005.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Incoherent pion photoproduction on the deuteron with polarization observables. II. Influence of final state rescattering
AU - Fix, A.
AU - Arenhövel, H.
PY - 2005/12/1
Y1 - 2005/12/1
N2 - Incoherent pion photoproduction on the deuteron is studied for photon energies from threshold up to 1 GeV, with special emphasis on polarization observables. The elementary γN→πN amplitude is taken from the MAID model. We investigate the influence of final state interactions on total and semi-exclusive cross sections d→(γ→,π)NN by including complete rescattering in the final NN and πN subsystems. For charged-pion production the influence of NN rescattering is moderate whereas πN rescattering is almost negligible. Much stronger influences of NN rescattering are seen in neutral-pion production, which are due to the elimination of a significant spurious coherent contribution in the impulse approximation. Sizable effects are also found in some of the beam, target, and beam-target asymmetries of the differential cross section.
AB - Incoherent pion photoproduction on the deuteron is studied for photon energies from threshold up to 1 GeV, with special emphasis on polarization observables. The elementary γN→πN amplitude is taken from the MAID model. We investigate the influence of final state interactions on total and semi-exclusive cross sections d→(γ→,π)NN by including complete rescattering in the final NN and πN subsystems. For charged-pion production the influence of NN rescattering is moderate whereas πN rescattering is almost negligible. Much stronger influences of NN rescattering are seen in neutral-pion production, which are due to the elimination of a significant spurious coherent contribution in the impulse approximation. Sizable effects are also found in some of the beam, target, and beam-target asymmetries of the differential cross section.
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U2 - 10.1103/PhysRevC.72.064005
DO - 10.1103/PhysRevC.72.064005
M3 - Article
VL - 72
JO - Physical Review C
JF - Physical Review C
SN - 0556-2813
IS - 6
M1 - 064005
ER -