Elastic photoproduction of. omega. mesons from hydrogen, deuterium, and complex nuclei

Journal Article · Mon Jun 14 04:00:00 EDT 1976 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.36.1428· OSTI ID:7347311

Abramson, J; Andrews, D E; Harvey, J; Lobkowicz, F; May, E N; Nelson, Jr, C A; Singer, M; Thorndike, E H; Nordberg, Jr, M E

We have studied ..omega.. photoproduction using 7.5- to 10.5-GeV tagged photons. Cross sections from hydrogen lie 22% below the bubble chamber results of Ballam et al., but have a similar slope. Density matrices indicate approximate s-channel helicity conservation. The proton--neutron cross-section difference is midway between zero and the value suggested by the ..gamma..p--..gamma..n total-cross-section difference. Fits to the cross sections for D, Be, and Cu and those for Be, C, Al, Cu, and Pb from a previous experiment yield sigma/sub ..omega..N/ = 25.4 +- 2.7 mb and ..gamma../sub ..omega..//sup 2//4..pi.. = 7.6 +- 1.2. (AIP)

• Research Organization: Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627
• OSTI ID: 7347311
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 36:24; ISSN PRLTA
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BASIC INTERACTIONS
BERYLLIUM 9 TARGET
BOSONS
COPPER
CROSS SECTIONS
DENSITY MATRIX
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
GEV RANGE
GEV RANGE 01-10
GEV RANGE 10-100
HADRONS
HELICITY
IMPULSE APPROXIMATION
INTERACTIONS
MATRICES
MESON RESONANCES
MESONS
METALS
NUCLEAR REACTIONS
OMEGA-784 RESONANCES
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PHOTON-BARYON INTERACTIONS
PHOTON-DEUTERON INTERACTIONS
PHOTON-HADRON INTERACTIONS
PHOTON-NUCLEON INTERACTIONS
PHOTON-PROTON INTERACTIONS
PHOTONUCLEAR REACTIONS
PHOTOPRODUCTION
RESONANCE PARTICLES
S CHANNEL
TARGETS
TRANSITION ELEMENTS
VECTOR MESONS