Photoproduction of mesons on nuclei near the production threshold

• Published in: The European physical journal. A, Hadrons and nuclei Vol. 47; no. 2
• Main Authors: 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, Ch, Gothe, R., Gregor, R., Gridnev, A. B., Gutz, E., Höffgen, S., Hoffmeister, P., Horn, I., Hössl, J., Jaegle, I., Junkersfeld, J., Kalinowsky, H., Klein, Frank, Klein, Friedrich, Klempt, E., Konrad, M., Kopf, B., Kotulla, M., Krusche, B., Langheinrich, J., Löhner, H., Lopatin, I. V., Lotz, J., Lugert, S., Menze, D., Mertens, T., Messchendorp, J. G., Morales, C., Novotny, R., Ostrick, M., Pant, L. M., van Pee, H., Pfeiffer, M., Roy, A., Radkov, A., Schadmand, S., Schmidt, Ch, Schmieden, H., Schoch, B., Shende, S., Suft, G., Süle, A., Sumachev, V. V., Szczepanek, T., Thoma, U., Trnka, D., Varma, R., Walther, D., Weinheimer, Ch, Wendel, Ch
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 2011
• Subjects: Hadrons; Heavy Ions; Nuclear Fusion; Nuclear Physics; Particle and Nuclear Physics; Physics; Physics and Astronomy; Regular Article - Experimental Physics; Mass Shift; Current Address; Incident Photon Energy; Production Threshold; Spectral Function
• ISSN: 1434-6001; 1434-601X
• DOI: 10.1140/epja/i2011-11016-5

. The photoproduction of mesons on LH 2 , C and Nb has been measured for incident photon energies from 900 to 1300MeV using the CB/TAPS detector at ELSA. The lineshape does not show any significant difference between the LH 2 and the Nb targets. The experiment was motivated by transport calculations that predicted a sensitivity of the lineshape to in-medium modifications near the production threshold on a free nucleon of MeV. A comparison with recent calculations is given.