Data di Pubblicazione:
1998
Abstract:
We present new Sigma beam asymmetry data for eta meson photoproduction on the proton, using a novel tagged, laser backscattered, linearly polarized photon beam up to 1.1 GeV. The data show large, positive asymmetries, at all incident photon energies. In addition to the S-11(1535) and D-13(1520) resonances necessary to reproduce the cross sections, P-13(1720) and D-15(1675) "four stars" resonances contribute to the Sigma observable, but cannot reproduce the strong forward asymmetries measured at energies higher than 900 MeV.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
J. Ajaka; M. Anghinolfi; V. Bellini; G. Berrier; J. P. Bocquet; M. Breuer; P. M. Calvat; M. Capogni; L. E. Casano; M. Castoldi; L. Ciciani; P. Corvisiero; A. D'Angelo; J. P. Didelez; R. Di Salvo; C. Djalali; M. A. Duval; R. Frascaria; G. Gervino; F. Ghio; P. Girard; B. Girolami; E. Guinault; P. Hoffmann-Rothe; E. Hourany; I. Kilvington; V. Kouznetsov; A. Lapik; P. L. Sandri; D. Moricciani; M. Morlet; V. Nedorezov; L. Nicoletti; C. Perrin; D. Rebreyend; F. Renard; M. Ripani; L. Rosier; P. Rossi; F. Roudot; T. Russew; M. Sanzone; C. Schaerf; M. L. Sperduto; A. Sudov; M. Taiuti; A. Turinge; J. Van de; A. Zucchiatti
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