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Interference phenomena in the J(P)=1/2(-) wave in eta photoproduction

Anisovich, A. V. and Klempt, E. and Krusche, B. and Nikonov, V. A. and Sarantsev, A. V. and Thoma, U. and Werthmueller, D.. (2015) Interference phenomena in the J(P)=1/2(-) wave in eta photoproduction. The European physical journal A, 51 (6). p. 72.

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Official URL: http://edoc.unibas.ch/40411/

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Abstract

The recent precise experimental results for the photoproduction of eta-mesons off the neutron measured with the Crystal Ball/TAPS calorimeter at the MAMI accelerator have been investigated in detail in the framework of the Bonn-Gatchina coupled-channel model. The main result is that the narrow structure observed in the excitation function of gamma n -> n eta can be reproduced fully with a particular interference pattern in the J(P) = 1/2(-) partial wave. Introduction of the narrow resonance N(1685) with the properties reported in earlier publications deteriorates the quality of the fit.
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:Springer-Verlag
ISSN:1434-6001
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:30 Jun 2016 11:01
Deposited On:09 May 2016 09:57

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