1. BEAM ASYMMETRY IN MESON PHOTOPRODUCTION ON DEUTERON TARGETS AT GRAAL
- Author
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DI SALVO, R., Bartalini, O., Bellini, Vincenzo, Bocquet, J. P., Castoldi, M., D'Angelo, A., Didelez, J. P., Fantini, A., Gervino, G., Ghio, F., Girolami, B., Giusa, A., Guidal, M., Hourany, E., Kunne, R., Kuznetsov, V., Lapik, A., LEVI SANDRI, P., Lleres, A., Moricciani, D., Moushkarenko, A., Nedorezov, D. V., Rebreyend, D., Rudnev, N. V., Russo, Giuseppe, Schaerf, C., Sperduto, M. L., Sutera, CONCETTA MARIA, Turinge, A., and Zabrodin, A.
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,Proton ,Meson ,media_common.quotation_subject ,Astronomy and Astrophysics ,Asymmetry ,Atomic and Molecular Physics, and Optics ,Nuclear physics ,Deuterium ,Neutron ,Beam (structure) ,media_common - Abstract
Preliminary results on the beam asymmetry Σ for η and π0 photoproduction on the proton and the neutron in the deuteron in a quasi free kinematics regime have been obtained. Very preliminary results will be presented on the status of art of the GRAAL search for the two members of the exotic penta-quarks anti-decuplet, the P11 and the Θ+.
- Published
- 2005
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