This title appears in the Scientific Report :
2012
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevC.85.054003 in citations.
Please use the identifier: http://hdl.handle.net/2128/11091 in citations.
Pion photoproduction in a dynamical coupled-channels model
Pion photoproduction in a dynamical coupled-channels model
The charged and neutral pion photoproduction reactions are investigated in a dynamical coupled-channels approach based on the formulation of Haberzettl, Huang, and Nakayama [Phys. Rev. C 83, 065502 (2011)]. The hadronic final-state interaction is provided by the Juelich pi-N model, which includes th...
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Personal Name(s): | Huang, F. (Corresponding author) |
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Döring, M. / Haberzettl, H. / Haidenbauer, J. / Hanhart, C. / Krewald, S. / Meißner, U.-G. / Nakayama, K. | |
Contributing Institute: |
JARA - HPC; JARA-HPC Theorie der starken Wechselwirkung; IKP-3 Theorie der Starken Wechselwirkung; IAS-4 |
Published in: | Physical Review C Physical review / C, 85 85 (2012 2012) 5 5, S. 054003 054003 |
Imprint: |
Woodbury, NY
Inst.
2012
2012-05-16 2012-05-01 |
DOI: |
10.1103/PhysRevC.85.054003 |
Document Type: |
Journal Article |
Research Program: |
Unified analysis of photon- and pion-induced reactions in the hadron exchange picture Hadron Structure and Dynamics (HSD) |
Subject (ZB): | |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/11091 in citations.
The charged and neutral pion photoproduction reactions are investigated in a dynamical coupled-channels approach based on the formulation of Haberzettl, Huang, and Nakayama [Phys. Rev. C 83, 065502 (2011)]. The hadronic final-state interaction is provided by the Juelich pi-N model, which includes the channels pi-N and eta-N comprising stable hadrons as well as the effective pi-pi-N channels pi-Delta, sigma-N, and rho-N. This hadronic model has been quite successful in describing pi-N to pi-N scattering for center-of-mass energies up to 1.9 GeV. By construction, the full pion photoproduction current satisfies the generalized Ward-Takahashi identity and thus is gauge invariant as a matter of course. The calculated differential cross sections and photon spin asymmetries up to 1.65 GeV center-of-mass energy for the reactions gamma p to pi+ n, gamma p to pi0 p, gamma n to pi- p and gamma n to pi0 n are in good agreement with the experimental data. |