Initial bremsstrahlung conversion
Electromagnetic cascades arising from a primary electron pair have been studied in emulsions exposed to 300-GeV protons, and also in emulsions exposed to 200-GeV negative pions. Cascade development is examined through the occurrence of initial bremsstrahlung conversion along some hundreds of primary-pair-member tracks of path length >10 mm and energy >3 GeV. Cascades associated with pion-nucleus collisions evidently develop in accord with theory, while those from proton-nucleus collisions show cascading delay approx.10/sup -11/ sec. A check on cascades generated by 400-GeV proton-nucleus collisions also shows this delayed cascading. After close consideration of error sources, an explanation is sought in assumptions about the electromagnetic field.
- Research Organization:
- Physics Department, The University of Tennessee, Knoxville, Tennessee 37916
- OSTI ID:
- 6455539
- Journal Information:
- Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 24:3; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645103 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
645104 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON REACTIONS
BREMSSTRAHLUNG
CHARGED-PARTICLE REACTIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GAMMA CASCADES
GEV RANGE
GEV RANGE 100-1000
HADRON REACTIONS
INTERACTIONS
LEPTONS
MESON REACTIONS
NUCLEAR CASCADES
NUCLEAR EMULSIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
PAIR PRODUCTION
PION MINUS REACTIONS
PION REACTIONS
PROTON REACTIONS
RADIATIONS