Publications (8)
Measurement of eta photoproduction on the proton from threshold to 1500 MeV
O. Bartalini, V. Bellini, J. P. Bocquet +39
Beam asymmetry and differential cross section for the reaction gamma+p->eta+p were measured from production threshold to 1500 MeV photon laboratory energy. The two dominant neutral…
First Measurement of the Beam Asymmetry in Photoproduction off the Proton near Threshold
P. Levi Sandri, G. Mandaglio, V. De Leo +33
The beam asymmetry in photoproduction off the proton was measured at the GrAAL polarised photon beam with incoming photon energies of 1.461 and 1.480 GeV. For bo…
Measurement of beam-recoil observables Ox, Oz and target asymmetry for the reaction gamma p -> K Lambda
A. Lleres, O. Bartalini, JP. Bocquet +36
The double polarization (beam-recoil) observables Ox and Oz have been measured for the reaction gamma p -> K Lambda from threshold production to Egamma = 1500 MeV. The data were ob…
Eta photoproduction off the neutron at GRAAL
V. Kuznetsov, O. Bartalini, V. Bellini +24
The gamma n -> eta n quasi-free cross section reveals a resonant structure at W ~ 1.675 GeV. This structure may be a manifestation of a baryon resonance. A priori its properties, t…
Measurement of the Σ beam asymmetry for the Ï photo-production off the proton and the neutron at GRAAL
V. Vegna, A. D'Angelo, O. Bartalini +34
We report on new measurements of the beam asymmetry for Ï photo-production on proton and neutron in Hydrogen and Deuterium targets from the GRAAL collaboration. The beam asymmetry…
Beam asymmetry measurements on the photoproduction off neutrons
G. Mandaglio, F. Mammoliti, M. Manganaro +30
The beam asymmetry in the photoproduction of negative pions from quasi-free neutrons in a deuterium target was measured at Graal in the energy interval 700 - 1500 MeV and a wi…
Limits on light-speed anisotropies from Compton scattering of high-energy electrons
J. -P. Bocquet, D. Moricciani, V. Bellini +35
The possibility of anisotropies in the speed of light relative to the limiting speed of electrons is considered. The absence of sidereal variations in the energy of Compton-edge ph…
Evidence for Narrow N*(1685) Resonance in Quasifree Compton Scattering on the Neutron
V. Kuznetsov, M. V. Polyakov, V. Bellini +17
The first study of quasi-free Compton scattering on the neutron in the energy range of GeV is presented. The data reveals a narrow peak at GeV. This…