Measurement of the Total Hadronic Cross-section in Photon-photon Interactions
Oct, 198414 pages
Published in:
- Phys.Rev.Lett. 54 (1985) 763
Report number:
- UCSD-HE2 84-01
Experiments:
- SLAC-PEP-004
Citations per year
Abstract: (APS)
The total hadronic cross section for virtual photon-photon interactions is reported for center-of-mass energy, W, between 2 and 20 GeV. The data were obtained via the process e+e−→e+e−γ*γ*→e e−++hadrons with both scattered e+ and e− detected. Each photon’s four-momentum squared, q2, ranges from -0.1 to -1.6 GeV2. Dependence upon q2 agrees with a generalized vector-meson-dominance model. The total cross section shows little W dependence, averaging 125 nb at q12=q22=-0.3. Photon helicity interference terms are determined.- ELECTRON POSITRON: COLLIDING BEAMS
- COLLIDING BEAMS: ELECTRON POSITRON
- ELECTRON POSITRON: INELASTIC SCATTERING
- INELASTIC SCATTERING: ELECTRON POSITRON
- EXCHANGE: TWO-PHOTON
- TWO-PHOTON: EXCHANGE
- PHOTON PHOTON: INTERACTION
- INTERACTION: PHOTON PHOTON
- HADRON: PHOTOPRODUCTION
- PHOTOPRODUCTION: HADRON
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