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DUNAITSEV 1962

Dunaitsev, A.F.; Petrukhin, V.I.; Prokoshkin, Y.D.; Rykalin, V.I.;
Check of the Conserved Vector Current Hypothesis
Phys. Lett. 1 (1962) 138;

Motivation
The investigation of the pion β decay π⁺ → π^o e⁺ ν_e makes it possible to check directly whether the conserved vector current hypothesis suggested by Gershtein and Zeldovich as earlier as 1955 is testifiable. This mode of decay predicted by Zeldovich is of great interest at present as far as checking one of the fundamental assumptions of the modern weak interaction theory is concerned. (Extracted from the introductory part of the paper.).

Accelerator JINR-600 Detectors SPEC

Related references
More (earlier) information appears in
A. F. Dunaitsev et al., Zh. Eksp. Teor. Fiz. 42 (1962) 1421;
A. F. Dunaitsev et al., Zh. Eksp. Teor. Fiz. 42 (1962) 632;
More (later) information appears in
A. F. Dunaitsev et al., Zh. Eksp. Teor. Fiz. 47 (1964) 84;
See also
R. P. Feynman and M. Gell-Mann, Phys. Rev. 109 (1958) 193;
S. S. Gershtein and Y. B. Zeldovich, Zh. Eksp. Teor. Fiz. 29 (1955) 698;
Y. B. Zeldovich, Doklady Akad. Nauk SSSR 97 (1954) 421;

Data comments
Four events.

Reactions

π+ πo e+ νe

p, const

Particles studied

π+

pw

Record comments
First observation of the π⁺ beta decay. First direct experimental evidence for the validity of the CVC hypothesis.

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