Journal article

Beam asymmetries in near-threshold ω photoproduction off the proton


Authors listKlein, Frank; Anisovich, A. V.; Bacelar, J. C. S.; Bantes, B.; Bartholomy, O.; Bayadilov, D.; Beck, R.; Beloglazov, Y. A.; Castelijns, R.; Crede, V.; Dutz, H.; Ehmanns, A.; Elsner, D.; Essig, K.; Ewald, R.; Fabry, I.; Fuchs, M.; Funke, Ch.; Gregor, R.; Gridnev, A. B.; Gutz, E.; Hoeffgen, S.; Hoffmeister, P.; Horn, I.; Jaegle, I.; Junkersfeld, J.; Kalinowsky, H.; Kammer, S.; Kleber, V.; Klein, Friedrich; Klempt, E.; Konrad, M.; Kotulla, M.; Krusche, B.; Lang, M.; Loehner, H.; Lopatin, I. V.; Lotz, J.; Lugert, S.; Menze, D.; Mertens, T.; Messchendorp, J. G.; Metag, V.; Morales, C.; Nanova, M.; Nikonov, V. A.; Novinski, D.; Novotny, R.; Ostrick, M.; Pant, L. M.; van Pee, H.; Pfeiffer, M.; Radkov, A.; Roy, A.; Sarantsev, A. V.; Schmidt, C.; Schmieden, H.; Schoch, B.; Shende, S. V.; Sokhoyan, V.; Suele, A.; Sumachev, V. V.; Szczepanek, T.; Thoma, U.; Trnka, D.; Varma, R.; Walther, D.; Weinheimer, Ch.; Wendel, Ch.

Publication year2008

JournalPhysical Review D

Volume number78

Issue number11

ISSN1550-7998

eISSN1550-2368

Open access statusGreen

DOI Linkhttps://doi.org/10.1103/PhysRevD.78.117101

PublisherAmerican Physical Society


Abstract
The photoproduction of omega mesons off protons has been studied at the Bonn ELSA accelerator from threshold to E-gamma = 1700 MeV. Linearly polarized beams were produced via coherent bremsstrahlung. Large photon asymmetries in excess of 50% were obtained. For the first time the pion asymmetries associated with the omega -> pi(0)gamma decay were measured and found close to zero. The asymmetries indicate s-channel resonance formation on top of t-channel exchange processes.



Citation Styles

Harvard Citation styleKlein, F., Anisovich, A., Bacelar, J., Bantes, B., Bartholomy, O., Bayadilov, D., et al. (2008) Beam asymmetries in near-threshold ω photoproduction off the proton, Physical Review D, 78(11), Article 117101. https://doi.org/10.1103/PhysRevD.78.117101

APA Citation styleKlein, F., Anisovich, A., Bacelar, J., Bantes, B., Bartholomy, O., Bayadilov, D., Beck, R., Beloglazov, Y., Castelijns, R., Crede, V., Dutz, H., Ehmanns, A., Elsner, D., Essig, K., Ewald, R., Fabry, I., Fuchs, M., Funke, C., Gregor, R., ...Wendel, C. (2008). Beam asymmetries in near-threshold ω photoproduction off the proton. Physical Review D. 78(11), Article 117101. https://doi.org/10.1103/PhysRevD.78.117101



Keywords


PhotonsSPECTROMETER

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