INELASTIC INTERACTIONS OF 9 BEV PROTONS WITH FREE AND BOUND NUCLEONS IN PHOTOEMULSION (in Russian)
Multiple Coulomb scattering and ionization were measured in order to obtain the energy and angular characteristics of secondary panticle tracks at 5 deg to the emulsion plane. 144 tracks from p-p events and 108 tracks from p-n events were recorded. The mean magnitude of the spurious scattering layer was 0.3 mu for a 1000 mu emulsion and 0.7 mu for a 2000 mu emulsion, correspcnding to Coulomb scattering of single-charge panticles with p beta = 5 Bev/c. All secondary particles with p beta < 1.6 Bev/c were identified. Curves showing ionization dependence on p beta for pi mesons and protons are overlapping in the region of higher p beta magnitudes. It is shown that p beta < 1.6 Bev/c composes 78% of the total number of paaticles. The angular distribution of charged pi mesons and protons, the proton and charged pi meson pulse spectra, and the angular distribution of secondary particles in p-p and p-n interactions are plotted. The angular distribution of p-p interactions is symmetric, while for p-n it is asymmetric. The asymmetry coefficients are DELTA pp = 0.08 plus or minus 0.36, DELTA pn = 1.05 plus or minus 0.32. The asymmetry cannot be explained by statistical theory. Neither can the experimental data on N-N interactions at 6 to 9 Bev be described by multiple production statistical theory. The data on the spectra of secondary protons and mesons do not contradict the postulation of the importance of collisions with small momenium transfer (peripheral collisions). (R.V.J.)
- Research Organization:
- Joint Inst. for Nuclear Research, Dubna, USSR
- NSA Number:
- NSA-14-022346
- OSTI ID:
- 4157638
- Journal Information:
- Zhur. Eksptl'. i Teoret. Fiz., Journal Name: Zhur. Eksptl'. i Teoret. Fiz. Vol. Vol: 38
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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