The double polarization (beam-recoil) observables O-x and O-z have been measured for the reaction gamma p -> K+ Lambda from threshold production to E gamma similar to 1500 MeV. The data were obtained with the linearly polarized beam of the GRAAL facility. Values for the target asymmetry T could also be extracted despite the use of an unpolarized target. Analyses of our results by two isobar models tend to confirm the necessity to include new or poorly known resonances in the 1900 MeV mass region.
Measurement of beam-recoil observables O-x, O-z and target asymmetry T for the reaction gamma p -> K+Lambda
MANDAGLIO, GIUSEPPE;
2009-01-01
Abstract
The double polarization (beam-recoil) observables O-x and O-z have been measured for the reaction gamma p -> K+ Lambda from threshold production to E gamma similar to 1500 MeV. The data were obtained with the linearly polarized beam of the GRAAL facility. Values for the target asymmetry T could also be extracted despite the use of an unpolarized target. Analyses of our results by two isobar models tend to confirm the necessity to include new or poorly known resonances in the 1900 MeV mass region.File in questo prodotto:
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