High-statistics differential cross sections and spin-density matrix elements for the reaction gamma p -> p omega have been measured using the CEBAF large acceptance spectrometer (CLAS) at Jefferson Lab for center-of-mass (c.m.) energies from threshold up to 2.84 GeV. Results are reported in 112 10-MeV wide c.m. energy bins, each subdivided into cos theta(omega)(c.m.) bins of width 0.1. These are the most precise and extensive omega photoproduction measurements to date. A number of prominent structures are clearly present in the data. Many of these have not previously been observed due to limited statistics in earlier measurements.
Differential cross sections and spin density matrix elements for the reaction gamma p ---> p omega
RICCO, GIOVANNI;TAIUTI, MAURO GINO;
2009-01-01
Abstract
High-statistics differential cross sections and spin-density matrix elements for the reaction gamma p -> p omega have been measured using the CEBAF large acceptance spectrometer (CLAS) at Jefferson Lab for center-of-mass (c.m.) energies from threshold up to 2.84 GeV. Results are reported in 112 10-MeV wide c.m. energy bins, each subdivided into cos theta(omega)(c.m.) bins of width 0.1. These are the most precise and extensive omega photoproduction measurements to date. A number of prominent structures are clearly present in the data. Many of these have not previously been observed due to limited statistics in earlier measurements.
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