NN Final-State Interaction in the Helicity Dependence of Inclusive $π^-$ Photoproduction from the Deuteron

Details NN Final-State Interaction in the Helicity Dependence of Inclusive $π^-$ Photoproduction from the Deuteron NN Final-State Interaction in the Helicity Dependence of Inclusive $π^-$ Photoproduction from the Deuteron

2005-04-30

arxiv.org/abs/nucl-th/0505001v1

Prog.Theor.Phys. 113 (2005) 169-181

Physics

Nuclear Physics

Nuclear Theory

13 pages, 6 eps figures, published in Prog. Theor. Phys. 113 (2005) 169-181

Scientific paper

10.1143/PTP.113.169

The helicity dependence of the inclusive $\pi^-$ photoproduction reaction from the deuteron in the $\Delta$(1232)-resonance region is investigated with inclusion of final-state nucleon-nucleon rescattering ($NN$-FSI). For the elementary $\pi$-production operator an effective Lagrangian model which includes the standard pseudovector Born terms and a contribution from the $\Delta$-resonance is used. The half-off-shell $NN$-scattering matrix is obtained from a separable representation of a realistic $NN$-interaction. The differential polarized cross-section difference for parallel and antiparallel helicity states is predicted and compared with experiment. We find that the effect of $NN$-FSI is much less important in the helicity difference than in the previously studied unpolarized differential cross section. Furthermore, the contribution of $\vec d(\vec\gamma,\pi^-)pp$ to the deuteron spin asymmetry is explicitly evaluated with inclusion of $NN$-FSI. It has been found that the effect of $NN$-FSI is much larger in the asymmetry than in the total cross section, and this leads to an appreciable reduction of the spin asymmetry in the $\Delta$-region. Inclusion of such effect also leads to improved and quite satisfactory agreement with existing experimental data.

Affiliated with

Also associated with

No associations

Rating

NN Final-State Interaction in the Helicity Dependence of Inclusive $π^-$ Photoproduction from the Deuteron does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with NN Final-State Interaction in the Helicity Dependence of Inclusive $π^-$ Photoproduction from the Deuteron, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NN Final-State Interaction in the Helicity Dependence of Inclusive $π^-$ Photoproduction from the Deuteron will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-678702