Photoproduction of π⁰-mesons off protons from the Δ(1232) region to Eγ=3 GeV

van Pee, H. and Bartholomy, O. and Crede, V. and Anisovich, A. V. and Anton, G. and Bantes, R. and Beloglazov, Yu. and Bogendoerfer, R. and Castelijns, R. and Ehmanns, A. and Ernst, J. and Fabry, I. and Flemming, H. and Foesel, A. and Fuchs, M. and Funke, Ch. and Gothe, R. and Gridnev, A. and Gutz, E. and Hoeffgen, St. and Horn, I. and Hoessl, J. and Junkersfeld, J. and Kalinowsky, H. and Klein, F. and Klempt, E. and Koch, H. and Konrad, M. and Kopf, B. and Krusche, B. and Langheinrich, J. and Loehner, H. and Lopatin, I. and Lotz, J. and Matthaey, H. and Menze, D. and Messchendorp, J. and Nikonov, V. A. and Novinski, D. and Ostrick, M. and Radkov, A. and Sarantsev, A. V. and Schadmand, S. and Schmidt, C. and Schmieden, H. and Schoch, B. and Suft, G. and Sumachev, V. and Szczepanek, T. and Thoma, U. and Walther, D. and Weinheimer, Ch.. (2007) Photoproduction of π⁰-mesons off protons from the Δ(1232) region to Eγ=3 GeV. The European physical journal. A, Hadrons and nuclei, Vol. 31, H. 1. pp. 61-77.

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Official URL: http://edoc.unibas.ch/dok/A5261933

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Photoproduction of pi(0)-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/dt, 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.
Faculties and Departments:05 Faculty of Science > Departement Physik > Former Organization Units Physics > Hadronenphysik (Krusche)
UniBasel Contributors:Krusche, Bernd
Item Type:Article, refereed
Article Subtype:Research Article
Note:Variant title: Photoproduction of pi(0)-mesons off protons from the Delta(1232) region to E-gamma=3 GeV -- Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:26
Deposited On:22 Mar 2012 13:55

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