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(θCMω 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
-
- 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) ρ00,0 ρ01,0 ρ01,-1
Measurements
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ID | Quantity | Beam | Target | Final state |
Q2min, GeV2 |
Q2max, GeV2 |
Wmin, GeV |
Wmax, GeV |
---|---|---|---|---|---|---|---|---|
E133M1 | dσ/dcos(θ) | γ | p | ω p | 0.0 | 0.0 | 1.725 | 2.835 |
E133M2 | ρ00,0 | γ | p | ω p | 0.0 | 0.0 | 1.725 | 2.835 |
E133M3 | ρ01,0 | γ | p | ω p | 0.0 | 0.0 | 1.725 | 2.835 |
E133M4 | ρ01,-1 | γ | p | ω p | 0.0 | 0.0 | 1.725 | 2.835 |
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