REGENERATION OF /theta/$sub 1$ MESONS IN A THIRTY-INCH PROPANE BUBBLE CHAMBER (thesis)
A beam of theta /sub 2/ mesons was produced by passing a beam of l.l Bev/c negative pions through a liquid hydrogen target and accepting the neutral reaction products in the forward direction after allowing the theta /sub 1/ component to decay. The resultant beam was filtered through four inches of lead and was then observed in a 30-inch propane bubble chamber. Regeneration of the theta /sub 1/ component was observed both in lead and iron plates inside the bubble chamber and in the propane itself. About 200 regenerated j theta /0 mesons were identified by their characteristic O-value and decay rate. The observed angular distribution of the theta /sub 1/ mesons demonstrated three types of regenerationof incoherent, from individual nucleons; diffraction, from all of the nucleons in a nucleus acting coherently; and transmission, from coherent action of all the matter in the plate as a whole. The Gell-Manun-Pais particle mixture hypothesis is thus further substantiated. (auth)
- Research Organization:
- California Univ., Berkeley, CA (US). Lawrence Radiation Lab.
- DOE Contract Number:
- W-7405-ENG-48
- NSA Number:
- NSA-16-009362
- OSTI ID:
- 4813812
- Report Number(s):
- UCRL-9606
- Country of Publication:
- United States
- Language:
- English
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