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 Abstract

A tagged and polarized Compton backscattered photon beam is produced at the GRAAL facility in the energy range from 0.5 GeV up to 1.5 GeV. We present new very preliminary results on beam polarization asymmetry Σ for the ω photoproduction on the proton. These results confirm the relevance of resonance contributions to polarization observables.

O. Bartalini, V. Bellini, J. P. Bocquet, M. Castoldi, A. D’Angelo, J. P. Didelez, R. Di Salvo, A. Fantini, G. Gervino, F. Ghio, B. Girolami, A. Giusa, M. Guidal, E. Hourany, V. Kouznetsov, R. Kunne, A. Lapik, P. Levi Sandri, A. Lleres, D. Moricciani, V. Nedorezov, L. Nicoletti, C. Randieri, D. Rebreyend, F. Renard, N. V. Rudnev, C. Schaerf, M. L. Sperduto, M. C. Sutera, A. Turinge, A. Zabrodin, A. Zucchiatti (2003)

GDH 2002, Proceedings of the Second International Symposium on the Gerasimov-Drell-Hearn Sum Rule and the Spin Structure of the Nucleon

Genova (Italy), 3-6 July 2002.

World Scientific Publishing Co. Pte. Ltd., June 2003, pp. 327-332, doi: 10.1142/9789812705167 0046

World Scientific Publishing Company was established in 1981 with only 5 employees in a tiny office. Today, the company employs more than 200 staff at its headquarters in Singapore and 450 globally. It has offices in New Jersey, London, Geneva, Hong Kong, Taipei, Beijing, Shanghai, Tianjin and Chennai. In about 3 decades, it has established itself as one of the leading scientific publishers in the world, and the largest international scientific publisher in the Asia-Pacific region. World Scientific publishes about 600 new titles a year and 130 journals in various fields.