Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2002-07-11
Phys.Rev. C66 (2002) 065206
Physics
Nuclear Physics
Nuclear Theory
22 pages LATEX including 4 postscript figures
Scientific paper
10.1103/PhysRevC.66.065206
Neutral pion photo- and electroproduction at threshold is analyzed in the framework of dispersion relations. For this purpose, we evaluate the real threshold amplitudes in terms of Born contributions and dispersion integrals determined by the imaginary parts of the MAID and SAID multipoles. The results show considerable cancellations between Born terms and resonance contributions. Good agreement with the data is found for photoproduction. While our dispersion analysis suggests considerable discrepancies for electroproduction, the present state of the experimental multipole analysis at finite Q^2 does not permit drawing conclusions at this time.
Arndt Richard A.
Bennhold Cornelius
Drechsel Dieter
Kamalov Sabit S.
Strakovsky Igor I.
No associations
LandOfFree
Dispersion relation analysis of neutral pion photo- and electroproduction at threshold using the MAID and SAID solutions 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 Dispersion relation analysis of neutral pion photo- and electroproduction at threshold using the MAID and SAID solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dispersion relation analysis of neutral pion photo- and electroproduction at threshold using the MAID and SAID solutions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-185454