Photoproduction of \(\omega\) mesons on nuclei near the production threshold

Photoproduction of \(\omega\) mesons on nuclei near the production threshold

The photoproduction of \(\omega\) mesons on LH_2, C and Nb has been studied for incident photon energies from 900 to 1300 MeV using the CB/TAPS detector at ELSA. The \(\omega\) line shape does not show any significant difference between the LH_2 and the Nb targets. The data are compared with results...

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Veröffentlicht in:arXiv.org 2011-02
Hauptverfasser: Nanova, M, Weil, J, Friedrich, S, Metag, V, Mosel, U, 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, H van Pee, 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: Artikel
Sprache:eng
Schlagworte:
Line shape
Omega-mesons
Photoproduction
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Zusammenfassung:The photoproduction of \(\omega\) mesons on LH_2, C and Nb has been studied for incident photon energies from 900 to 1300 MeV using the CB/TAPS detector at ELSA. The \(\omega\) line shape does not show any significant difference between the LH_2 and the Nb targets. The data are compared with results of transport calculations that predict a sensitivity of the \(\omega\) line shape to in-medium modifications near the production threshold on a free nucleon of \(E_{\gamma}^{lab}\) = 1109 MeV.}
ISSN:2331-8422
DOI:10.48550/arxiv.1008.4520