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Measurement of the beam asymmetry Sigma in the forward direction for (gamma)over-right-arrowp -< p pi(0)

Sparks, N. and Crede, V. and Anisovich, A. V. and Bacelar, J. C. S. and Bantes, R. and Bartholomy, O. and Bayadilov, D. and Beck, R. and Beloglazov, Y. A. and Castelijns, R. and Elsner, D. and Ewald, R. and Frommberger, F. and Funke, Chr. and Gregor, R. and Gridnev, A. and Gutz, E. and Hillert, W. and Hoffmeister, P. and Jaegle, I. and Junkersfeld, J. and Kalinowsky, H. and Kammer, S. and Klein, Frank and Klein, Friedrich and Klempt, E. and Kotulla, M. and Krusche, B. and Loehner, H. and Lopatin, I. V. and Lugert, S. and Menze, D. and Mertens, T. and Messchendorp, J. G. and Metag, V. and Nanova, M. and Nikonov, V. A. and Novinski, D. and Novotny, R. and Ostrick, M. and Pant, L. M. and van Pee, H. and Pfeiffer, M. and Roy, A. and Sarantsev, A. V. and Schadmand, S. and Schmidt, C. and Schmieden, H. and Schoch, B. and Shende, S. and Sokhoyan, V. and Suele, A. and Sumachev, V. V. and Szczepanek, T. and Thoma, U. and Trnka, D. and Varma, R. and Walther, D. and Wendel, Ch. and Wilson, A.. (2010) Measurement of the beam asymmetry Sigma in the forward direction for (gamma)over-right-arrowp -< p pi(0). Physical review. C, Nuclear physics, Vol. 81, H. 6 , 065210.

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Official URL: http://edoc.unibas.ch/dok/A5842048

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Abstract

Photoproduction of neutral pions has been studied with the CBELSA/TAPS detector for photon energies between 0.92 and 1.68 GeV at the electron stretcher accelerator ELSA. The beam asymmetry Sigma has been extracted for 115 degrees > theta(c.m.) > 155 degrees of the pi(0) meson and for theta(c.m.) > 60 degrees. The new beam-asymmetry data cover the very forward region, which extend previously published data for the same reaction by our collaboration and improve the world database for photon energies above 1.5 GeV. The angular dependence of Sigma shows overall good agreement with the SAID parametrization.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Hadronenphysik (Krusche)
UniBasel Contributors:Krusche, Bernd
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Institute of Physics
ISSN:0556-2813
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:14 Sep 2012 07:18
Deposited On:14 Sep 2012 06:47

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