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Photoproduction of mesons off nuclei - the photonuclear programs at ELSA and MAMI

Krusche, B.. (2012) Photoproduction of mesons off nuclei - the photonuclear programs at ELSA and MAMI. In: Journal of physics. Conference series, Vol. 349 , 012003. Bristol.

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Official URL: http://edoc.unibas.ch/dok/A6070665

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Abstract

Recent results for the photoproduction of mesons from nuclei with tagged bremsstrahlung beams are summarized. The experiments have been done at the Mainz MAMI accelerator with the Crystal Ball/TAPS setup and at the Bonn ELSA accelerator with the Crystal Barrel/TAPS detector. Two main physics topics are covered. The electromagnetic excitation spectrum of the neutron has been studied with meson photoproduction reactions off quasi-free neutrons from light nuclei. Particularly interesting results have been obtained for eta-photoproduction, where the excitation function of the neutron shows a pronounced, narrow structure which is not observed for the proton. The interaction of mesons with nuclear matter and the in-medium properties of hadrons under various aspects have been studied with meson photoproduction from nuclei, covering a large mass range (from the deuteron to lead). Questions like the possible formation of eta-mesic nuclei and in-medium modifications of the sigma-meson have been addressed.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Hadronenphysik (Krusche)
UniBasel Contributors:Krusche, Bernd
Item Type:Conference or Workshop Item
Conference or workshop item Subtype:Conference Paper
Publisher:Institute of physics
Note:Note: From international workshop: Meson production at intermediate and high energies -- Publication type according to Uni Basel Research Database: Conference paper
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Last Modified:13 Sep 2013 07:59
Deposited On:13 Sep 2013 07:58

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