THE MECHANISM FOR THE INTERACTION OF FAST PARTICLES WITH NUCLEI

Journal Article · Wed Aug 01 04:00:00 EDT 1962 · Izvestiya Akademii Nauk, Seriya Fizicheskaya (U.S.S.R.) For English translation see Bull. Acad. Sci. USSR, Phys. Ser. (Engl. Transl.)

OSTI ID:4800948

Barashenkov, V S; Mal'tsev, V M

Calculations were carried out on a digital computer for incident 9-Bev protons on an average light nuclei (N/sup 14/) and on an average heavy nuclei (Nb/ sup 94/). After interaction the particles were separated into three energy groups: sparticles or shower particles (0.5 to 9 Bev for nucleons, and 0.08 to ~8 Bev for pi -mesons), g-particles or cascade particles (0.03 to 0.5 Bev for nucleons, and 0.08 to 0.15 Bev for pi -mesons), and b-particles or particles with black prongs (<0.03 Bev for nucleons and <0.15 Bev for pi mesons). The overall energy interval for the N-N interactions was subdivided into 5 energy intervals, and for the pi -N interactions in 4 energy subgroups. It was assumed that the energy and angular characteristics for the elastic and inelastic interactions were constant within each subgroup. The calculated results were compared with experimental results from photoemulsion experiments, and the results were in good agreement with an intracascade mechanism for the interaction. At high excitation energies, two reactions take place: p + N yields d + k pi , and p + N yields p + n + k pi . In reacting 25-Bev protons with platinum, an excitation energy of about 8 Mev was assumed in order to obtain agreement with the observed experimental ratio (d/p)/sub pt/ = 0.024. The results for Al are analogous. Calculated ratios for the number of deuterons, protons, and pi - mesons were (d/p)/sub Pt/ = 0.03, (d/p)/sub Al/ = 0.02, (d/ pi /sup +/) /sub Pt/= 0.08, and (d/ pi /sup +/)/sub Al/ = 0.05. These results were in good agreement with the experimental values. A high relative yield of deuterons was noted. (TTT)

• Research Organization: Theoretical Physics Section of the United Inst. of Nuclear Research, USSR
• NSA Number: NSA-16-033837
• OSTI ID: 4800948
• Journal Information: Izvestiya Akademii Nauk, Seriya Fizicheskaya (U.S.S.R.) For English translation see Bull. Acad. Sci. USSR, Phys. Ser. (Engl. Transl.), Journal Name: Izvestiya Akademii Nauk, Seriya Fizicheskaya (U.S.S.R.) For English translation see Bull. Acad. Sci. USSR, Phys. Ser. (Engl. Transl.) Vol. Vol: 26; ISSN IANFA
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

ALUMINUM
COMPUTERS
DEUTERONS
DIGITAL SYSTEMS
ELEMENTARY PARTICLES
ENERGY RANGE
INTERACTIONS
NEUTRONS
NIOBIUM 94
NITROGEN 14
NUCLEI
NUCLEONS
NUMERICALS
PHYSICS
PIONS
PLATINUM
PROTONS