Dynamical coupled-channels analysis of 1H(e,e'pi)N reactions

Details Dynamical coupled-channels analysis of 1H(e,e'pi)N reactions Dynamical coupled-channels analysis of 1H(e,e'pi)N reactions

2009-04-13

arxiv.org/abs/0904.1918v3

Phys.Rev.C80:025207,2009

Physics

Nuclear Physics

Nuclear Theory

14 pages, 11 figures. Version to appear in PRC

Scientific paper

10.1103/PhysRevC.80.025207

We have performed a dynamical coupled-channels analysis of available p(e,e'pi)N data in the region of W < 1.6 GeV and Q^2 < 1.45 (GeV/c)^2. The channels included are gamma^* N, pi N, eta N, and pi pi N which has pi Delta, rho N, and sigma N components. With the hadronic parameters of the model determined in our previous investigations of pi N --> pi N, pi pi N reactions, we have found that the available data in the considered W < 1.6 GeV region can be fitted well by only adjusting the bare gamma^* N --> N^* helicity amplitudes for the lowest N^* states in P33, P11, S11 and D13 partial waves. The sensitivity of the resulting parameters to the amount of data included in the analysis is investigated. The importance of coupled-channels effect on the p(e,e' pi)N cross sections is demonstrated. The meson cloud effects, as required by the unitarity conditions, on the gamma^* N --> N^* form factors are also examined. Necessary future developments, both experimentally and theoretically, are discussed.

Affiliated with

Also associated with

No associations

Rating

Dynamical coupled-channels analysis of 1H(e,e'pi)N reactions 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 Dynamical coupled-channels analysis of 1H(e,e'pi)N reactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamical coupled-channels analysis of 1H(e,e'pi)N reactions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-324063