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Photoproduction of omega mesons on nuclei near the production threshold

 
: Nanova, M.; Weil, J.; Friedrich, S.; Metag, V.; Mosel, U.; Thiel, M.; Anton, G.; Bacelar, J.C.S.; Bartholomy, O.; Bayadilov, D.; Beloglazov, Y.A.; Bogendörfer, R.; Castelijns, R.; Crede, V.; Dutz, H.; Ehmanns, A.; Elsner, D.; Essig, K.; Ewald, R.; Fabry, I.; Fuchs, M.; Funke, C.; Gothe, R.; Gregor, R.; Gridnevm, A.B.; Gutz, E.; Höffgen, Stefan Klaus; Hoffmeister, P.; Horn, I.; Hössl, J.; Jaegle, I.; Junkersfeld, J.; Kalinowsky, H.; Klein, F.; Klein, F.; Klempt, E.; Konrad, M.; Kopf, B.; Kotulla, M.; Krusche, B.; Langheinrich, J.; Löhner, H.; Lopatin, I.V.; Lotz, J.; Lugert, S.; Menze, M.; Mertens, T.; Messchendorp, J.G.; Morales, C.; Novotny, R.; Ostrick, M.; Pant, L.M.; Pee, H. van; Pfeiffer, M.; Roy, A.; Radkov, A.; Schadmand, S.; Schmidt, C.; Schmieden, H.; Schoch, B.; Shende, S.; Suft, G.; Süle, A.; Sumachev, V.; Szczepanek, T.; Thoma, U.; Trnka, D.; Varma, R.; Walther, D.; Weinheimer, C.; Wendel, C.

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Volltext ()

The European physical journal. A, Hadrons and nuclei 47 (2011), Nr.2, 5 S.
ISSN: 1434-6001
ISSN: 1434-601X
ISSN: 1431-5831
Englisch
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer INT ()

Abstract
The photoproduction of omega mesons on LH2, C and Nb has been measured for incident photon energies from 900 to 1300MeV using the CB/TAPS detector at ELSA. The omega lineshape does not show any significant difference between the LH2 and the Nb targets. The experiment was motivated by transport calculations that predicted a sensitivity of the omega lineshape to in-medium modifications near the production threshold on a free nucleon of Egammalab = 1109MeV. A comparison with recent calculations is given.

: http://publica.fraunhofer.de/dokumente/N-183502.html