DEPOLARIZATION OF THE $mu$-MESON IN AN ELECTRIC FIELD (in Russian)
Journal Article
·
· Zhur. Eksptl'. i Teoret. Fiz.
OSTI ID:4779670
Additional depolarization of a mu /sup +/ meson (from a pi /sup +/ yields mu /su p +/ decay) was observed in the presence of an electric field with a tension E ~ 10/sup 5/ V/cm. Hence, it was concluded that the mu /sup +/ meson is captured by a gelatin molecule, since theoretical calculations show that a field of 10/sup 5/ V/cm cannot depolarize a mu -meson in the free state or in the state of a muon (the system mu /sup +/e/sup -/. The experiment was carried out by synchronizing the pulses of 85 Mev pi + mesons with electrical impulses having an amplitude U = 5 kv, which were fed to plane electrodes between which a photoemulsion 200 to 400 mu thick was placed. The electrical field in the emulsion was 1.2 to 2.5 x 10/sup 5/ V/cm. All pi yields mu yields e disintegrations in the emulsion took place in thls strong electric field (the variation in electric field did not exceed 10%). Control experiments were also run in the absence of an electric field in order to exclude the effect of the external magnetic field on the depolarization of the mu -meson. The values of the asymmetry coefficient a, which determines the angular distribution of electrons in a pi yields mu yields edisintegration in the equation dN/d theta ~ 1 -- a cos theta were found to be 0.14 with no electric field, 0.08 with an electric field of 1.2 x 10/sup 5/ V/cm, and 0.06 with an electric field of 2.4 x 10/sup 5/ V/cm. This effect can be qualitatively explained, if it is assumed that the mu -meson is captured by a gelatin molecule. (TTT)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-16-031046
- OSTI ID:
- 4779670
- Journal Information:
- Zhur. Eksptl'. i Teoret. Fiz., Journal Name: Zhur. Eksptl'. i Teoret. Fiz. Vol. Vol: 43
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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