Investigation of Direct Pair Formation by Electrons (in German)
Journal Article
·
· European Physical Journal. A
The direct production of electron-positron pairs by 31.5Mev electrons was investigated using a counting device. The external electron beam of a betatron, collimated and by deflection cleaned of photons, passed through a thin copper foil and was collected in a Faraday cup. The fast positrons emerging from the foil were analyzed in a magnetic field and detected by a plastic scintillator. By varying the thickness of the foil the differential cross section for (real) trident production was obtained. It was found to amount to about one third of the cross section predicted by Bhabha's theory (with k = k' = 1).
- Research Organization:
- Technische Hochschule, Karlsruhe, Ger.; Max-Planck-Institut fur Chemie, Mainz
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-14-015262
- OSTI ID:
- 4185976
- Journal Information:
- European Physical Journal. A, Journal Name: European Physical Journal. A Journal Issue: 4 Vol. 158; ISSN 1434-6001
- Publisher:
- Springer
- Country of Publication:
- Country unknown/Code not available
- Language:
- German
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