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Photoproduction of pi0-mesons off protons from the Delta(1232) region to
E(gamma) = 3 GeV | | H. van Pee
; O. Bartholomy
; V. Crede
; CB-ELSA Collaboration
; | | Date: |
13 Apr 2007 | | Journal: | Eur.Phys.J.A31:61-77,2007 | | Subject: | Nuclear Experiment (nucl-ex) | | Abstract: | Photoproduction of pi0 mesons was studied with the Crystal-Barrel detector at
ELSA for incident energies from 300 MeV to 3 GeV. Differential cross sections d
sigma /d Omega, d sigma/d t, and the total cross section are presented. For
E(gamma) < 3 GeV, the angular distributions agree well with the SAID
parametrization. At photon energies above 1.5 GeV, a strong forward peaking
indicates t-channel exchange to be the dominant process. The rapid variations
of the cross section with energy and angle indicate production of resonances.
An interpretation of the data within the Bonn-Gatchina partial wave analysis is
briefly discussed. | | Source: | arXiv, arxiv.0704.1776 | | Services: | Forum | Review | PDF | Favorites | |
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