Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

EFFECT OF NUCLEAR BINDING OF NUCLEONS ON THE SHAPE OF THE $pi$-MESON ENERGY SPECTRA (in Russian)

Journal Article · · Zhur. Eksptl'. i Teoret. Fiz.
OSTI ID:4097838
; ; ; ;
A comparative investigation of the energy spectra of pi /sup +/ and pi /sup -/ mesons produced by 654-Mev protons in free p-p collisions and also in p-p and p-n collisions in deuterons and carbon nuclei was carried out with a magnetic spectrometer. A difference between the shapes of the spectra of mesons from deuterium and carbon was detected which was due to a higher degree of pair correlation of the nucleons in the carben nuclei than in deuterons; differences in the momentum distribution of nucleons in these nuclei; and effects of secondary pion-nucleon interactions in carbon nuclei. The value 1: 0.79: 0.40 was obtained for the ratio of the differential cross sections for pi /sup +/ meson formation on free protons and on protons in deuterium and carbon nuclei at an angle of approximately 90 deg in the c.m.s. of the two colliding nucleons. The pi /sup -/ meson yields from deuterium and carbon per one neutron of the target nucleus, on the other hand, were found to be approximately the same. The measured value of the ratio of the pi /sup +/ and pi /sup -/ meson yields for deuterium and carbon are, correspondingly, 10.3 plus or minus 1.3 and 6.0 plus or minus 0.8. The decrease of this ratio on going from deuterium to carbon can be explained by the appreciable contribution of the secondary exchange interaction pi /sup 0/ + n yields pi /sup -/ + p to the yield of pi /sup -/ mesons from carbon. (auth)
Research Organization:
Joint Inst. of Nuclear Research, Dubna, USSR
NSA Number:
NSA-15-010140
OSTI ID:
4097838
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

Similar Records

EFFECTS OF THE NUCLEAR BINDING OF NUCLEONS ON PION SPECTRA
Journal Article · Tue Feb 28 23:00:00 EST 1961 · Nuclear Phys. · OSTI ID:4024306
ENERGY SPECTRA OF CHARGED PIONS PRODUCED IN pd-COLLISIONS AT 660 Mev
Journal Article · Thu Dec 31 23:00:00 EST 1959 · Acta. Phys. Polon. · OSTI ID:4171590
Energy Spectra of Charged $pi$ Mesons Produced in (p-d) Interactions at 660 Mev; ENERGETICHESKIE SPEKTRY ZARYAZHENNYKH P-MEZONOV, OBRAZOVANNYKH V pd-SOUDARENNYAKH PRI 660 MEV
Technical Report · Wed Dec 31 23:00:00 EST 1958 · Research: Dubna, U.S.S.R. Lab. of Nuclear Problems · OSTI ID:4048459

Related Subjects

ANGULAR DISTRIBUTION
CARBON
CROSS SECTIONS
DEUTERIUM
DEUTERONS
EFFICIENCY
ENERGY
ENERGY RANGE
INTERACTIONS
MAGNETIC FIELDS
MEASURED VALUES
MOMENTUM
NEUTRONS
NUCLEI
NUCLEONS
PHYSICS
PIONS
PIONS-MINUS
PIONS-NEUTRAL
PIONS-PLUS
PRODUCTION
PROTON BEAMS
PROTONS
SPECTRA
SPECTROMETERS
TARGETS