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Photoproduction of meson pairs : first measurement of the polarization observable I-s CBELSA/TAPS Collaboration

Gutz, E. and Sokhoyan, V. and van Pee, H. and Anisovich, A. V. and Bacelar, J. C. S. and Bantes, B. and Bartholomy, O. and Bayadilov, D. and Beck, R. and Beloglazov, Yu. and Castelijns, R. and Crede, V. and Dutz, H. and Elsner, D. and Ewald, R. and Frommberger, F. and Fuchs, M. and Funke, Ch. and Gregor, R. and Gridnev, A. and Hillert, W. and Hoffmeister, Ph. and Horn, I. and Jaegle, I. and Junkersfeld, J. and Kalinowsky, H. and Kammer, S. and Kleber, V. and Klein, Frank and Klein, Friedrich and Klempt, E. and Kotulla, M. and Krusche, B. and Lang, M. and Lohner, H. and Lopatin, I. and Lugert, S. and Menze, D. and Mertens, T. and Messchendorp, J. G. and Metag, V. and Nanova, M. and Nikonov, V. and Novinski, D. and Novotny, R. and Ostrick, M. and Pant, L. and Pfeiffer, M. and Piontek, D. and Roberts, W. and Roy, A. and Sarantsev, A. and Schadmand, S. and Schmidt, Ch. and Schmieden, H. and Schoch, B. and Shende, S. and Suele, A. and Sumachev, V. and Szczepanek, T. and Thiel, A. and Thoma, U. and Trnka, D. and Varma, R. and Walther, D. and Weinheimer, Ch. and Wendel, Ch.. (2010) Photoproduction of meson pairs : first measurement of the polarization observable I-s CBELSA/TAPS Collaboration. Physics letters. B, Vol. 687, H. 1. pp. 11-15.

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Official URL: http://edoc.unibas.ch/dok/A5842050

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Abstract

The polarization observable 15, a feature exclusive to the acoplanar kinematics of multi-meson final states produced via linearly polarized photons, has been measured for the first time. Results for the reaction (gamma) over barp -< p pi(0)eta are presented for incoming photon energies between 970 MeV and 1650 MeV along with the beam asymmetry I-c. The comparably large asymmetries demonstrate a high sensitivity of Is to the dynamics of the reaction. The sensitivity of these new polarization observables to the contributing partial waves is demonstrated by fits using the Bonn-Gatchina partial wave analysis. (C) 2010 Elsevier B.V. All rights reserved.
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:North-Holland
ISSN:0370-2693
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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