PRODUCTION OF $pi$$sup 0$-MESONS IN COLLISIONS BETWEEN 2.8 BeV/c$pi$$sup -$- MESONS AND PROTONS (in Russian)
The production of pi /sup 0/-mesons in the reactions pi /sup -/ + p yields m pi /sup 0/ + n(m = 1, 2, 3) was studied at P/sub i- = 2.8 Bev/c in a 17liter bubble chamber filled with a propane-xenon mixture or freon-12--freon-13 mixture. The cross section on hy drogen was determined by a difference method and found to equal (2.2 plus or minus 0.3) mb. The mean number of gamma - quanta per interaction is 4.0 plus or minus 0.4. The angular distribution of the gamma quanta in the center-of-mass system is anisotropic and possesses a sharp peak in the forward direction. The small cross section for exchange scattering, sigma ( pi - + p pi /sup 0/ + n) = 0.20 plus or minus 0.25 mb indicates that for the given plus or minus meson energy the partial interaction cross sections with isotopic spins 3/2 and 1/2 are equal. The cross sections for processes involving the formation of two or three pi /sup 0/-mesons are estimated by analyzing the distribution of the events with respect to number of gamma -quanta. (auth)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-009741
- OSTI ID:
- 4099325
- Journal Information:
- Zhur. Eksptl'. i Teoret. Fiz., Journal Name: Zhur. Eksptl'. i Teoret. Fiz. Vol. Vol: 39
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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