E04-021

Spokesperson

M. Williams

Year

2004

Abstract

High-statistics differential cross sections and spin density matrix elements for the reaction γ p -> p ω have been measured using the 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 CM energy bins, each subdivided into cos(θ_CM^ω bins of width 0.1. These are the most precise and extensive ω 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.

Publication

1. M. Williams, D. Applegate, M. Bellis, C.A. Meyer, and CLAS Collaboration Differential cross sections and spin density matrix elements for the reaction γp -> pω. // Phys. Rev. C 80, 065208 (2009); arXiv:0908.2910v3 [nucl-ex]

Quantities

dσ/dcos(θ)   ρ⁰_0,0   ρ⁰_1,0   ρ⁰_1,-1

Measurements