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THE DIRECT PRODUCTION OF ELECTRON PAIRS BY HIGH-ENERGY CHARGED PARTICLES (in Chinese)

Journal Article · · Wu Li Hsueh Pao (China) Supersedes Chung-Kuo Wu Li Hsueh For English translation see Chin. J. Phys. (Peking) (Engl. Transl.)
OSTI ID:4007572
; ; ;
An experiment using a cloud chamber in a magnetic field of 6200 gauss to determine the average total cross section of the direct production of electron pairs in aluminum by high energy electrons generated in cascade showers and having energies larger than 30 Mev is described. After correction for the spurious events 8.1 electron tridents, which were produced actually by electrons, were found. This figure corresponds to a mean free path of 672 plus or minus 585 cm or an average total cross section of (0.25 plus or minus 0.22) x 10/sup - 25/ cm/sup 2/ for trident production. In the treatment of data, the elimination of spurious tridents was appropriately considered. The formulas of the total cross section derived by Bhabha and by Murota et al., were applied in accordance with the experimental conditions to compute the total cross section. Comparison between the theoretical and experimental values was made. The experiment is in fair agreement with the theory of Murota et al., while not in contradiction with that of Bhabha. (auth)
Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-18-021311
OSTI ID:
4007572
Journal Information:
Wu Li Hsueh Pao (China) Supersedes Chung-Kuo Wu Li Hsueh For English translation see Chin. J. Phys. (Peking) (Engl. Transl.), Journal Name: Wu Li Hsueh Pao (China) Supersedes Chung-Kuo Wu Li Hsueh For English translation see Chin. J. Phys. (Peking) (Engl. Transl.) Vol. Vol: 17; ISSN WLHPA
Country of Publication:
Country unknown/Code not available
Language:
Chinese

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Related Subjects

BHABHA THEORY
CASCADE SHOWERS
CHARGED PARTICLES
CLOUD CHAMBERS
COSMIC RADIATION
CROSS SECTIONS
ELECTRON BEAMS
ELECTRONS
ENERGY RANGE
MAGNETIC FIELDS
MEAN FREE PATH
MEV RANGE
NUMERICALS
PAIR PRODUCTION
PHOTONS
PHYSICS
POSITRONS
SCATTERING
SHOWERS