EXPERIMENTAL VERIFICATION OF THE CHARGE INVARIANCE PRINCIPLE IN THE d + d $Yields$ He$sup 4$ + $pi$$sup 0$ REACTION FOR 400 Mev DEUTERONS (in Russian)
Journal Article
·
· Zhur. Eksptl'. i Teoret. Fiz.
OSTI ID:4836393
Experiments with a 400 Mev deuteron beam are described in which the d + d yields He/sup 4/ + pi /sup 0/ reaction, forbidden by the law of conservation of total isotopic spin, is investigated. With a reliability of 90% the total cross section of the reaction is shown to be smaller than 1.1 x 10/sup -32/ cm/ sup 2/. The upper limit of the cross section is compared with the cross sections for d + d yields He/sup 4/ + gamma and p + He/sup 3/ yields He/sup 4/ + pi /sup He/sup 4/ + pi /sup 0/ (which is allowed by the isotopic spin selection rules). The data and the theoretical estimations point to the existence of a strong forbiddenness in the d + d yields He/sup 4/ + pi /sup 0/ reaction, and hence confirm the validity of the law of conservation of total isotopic spin in processes of pi -meson production by nucleons and light nuclei. (auth)
- Research Organization:
- Joint Inst. for Nuclear Research, Dubna, USSR
- NSA Number:
- NSA-16-000975
- OSTI ID:
- 4836393
- Journal Information:
- Zhur. Eksptl'. i Teoret. Fiz., Journal Name: Zhur. Eksptl'. i Teoret. Fiz. Vol. Vol: 41
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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Related Subjects
BINDING ENERGY
CROSS SECTIONS
DEUTERON BEAMS
ELECTRIC CHARGES
ENERGY
ENERGY LEVELS
ENERGY RANGE
GAMMA RADIATION
HELIUM 3
HELIUM 4
INTERACTIONS
ISOSPIN
MEASURED VALUES
NUCLEAR FORCES
NUCLEAR MODELS
NUCLEI
NUCLEONS
PARTICLE MODELS
PHYSICS
PIONS
PRODUCTION
PROTONS
QUANTUM MECHANICS
SELECTION RULES
SPIN
TRANSIENTS
CROSS SECTIONS
DEUTERON BEAMS
ELECTRIC CHARGES
ENERGY
ENERGY LEVELS
ENERGY RANGE
GAMMA RADIATION
HELIUM 3
HELIUM 4
INTERACTIONS
ISOSPIN
MEASURED VALUES
NUCLEAR FORCES
NUCLEAR MODELS
NUCLEI
NUCLEONS
PARTICLE MODELS
PHYSICS
PIONS
PRODUCTION
PROTONS
QUANTUM MECHANICS
SELECTION RULES
SPIN
TRANSIENTS