Determination of the $ω - γ$ Coupling Constant and the $ω - N$ Scattering Amplitude

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5 July 1971

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 27 (1) , 65-67
https://doi.org/10.1103/physrevlett.27.65

Abstract

Forward

ω

photoproduction from complex nuclei and interference in the

π^{+} π^{-}

decay mode of

ω

,

ρ^{0}

photoproduced from complex nuclei are analyzed to determine the

ω - γ

coupling constant and the magnitude and phase of the

ω - N

scattering amplitude. Values obtained are

\frac{γ_{ω}^{2}}{4 π} = {7.6}_{- 1.1}^{+ 1.8}

;

σ_{ω N} = 25.3 \pm 7.8

mb;

invtan α_{ω} = - 28 \pm 16 °

.

Keywords

This publication has 8 references indexed in Scilit:

Determination of the $ω \to π^{+} π^{-}$ Decay Amplitude from Photoproduction
Physical Review Letters, 1971
Observation of Coherent Interference Pattern Between $ρ$ and $ω$ Decays
Physical Review Letters, 1970
Photoproduction of $ω$ Mesons from Complex Nuclei
Physical Review Letters, 1970
Observation of $ρ - ω$ Interference in the Photoproduction of Electron-Positron Pairs from Carbon and a Measurement of the $ρ - ω$ Phase
Physical Review Letters, 1970
Photoproduction of Neutral Rho Mesons from Complex Nuclei
Physical Review Letters, 1970
Photoproduction of 8-GeV Rho Mesons from Nuclei
Physical Review Letters, 1970
Comparison of Orsay results on vector mesons with the vector meson dominance model predictions
Physics Letters B, 1969
ωo production by e+e− annihilation
Physics Letters B, 1969