Low-energy pion production with 800 MeV/N /sup 20/Ne

Journal Article · Mon Oct 01 04:00:00 EDT 1979 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.20.1332· OSTI ID:5813200

Chiba, J; Nakai, K; Tanihata, I; Nagamiya, S; Bowman, H; Ingersoll, J; Rasmussen, J O

Doubly differential cross sections for production of positive pions (20 MeV < or = T/sup Lab//sub ..pi../ < or = 100 MeV) in bombardment of /sup 20/Ne on NaF, Cu and Pb targets at 800 MeV/N have been measured with a range telescope. The results showed that the angular distribution of low-energy pions in the nucleon-nucleon center of mass (T/sup c.m.//sub ..pi../ < or = 50 MeV) was isotropic, even 90/sup 0/ peaking at approx.15 MeV c.m. The intermediate-energy pions (50 < or = T/sup c.m.//sub ..pi../ < or = 300 MeV) were forward and backward peaked, reflecting the individual nucleon-nucleon process in the isobar model of production. The observed cross sections were shown to be generally reproduced by an incoherent superposition of the experimental (p + nucleus) cross sections.

• Research Organization: Department of Physics, University of Tokyo, Tokyo, Japan
• OSTI ID: 5813200
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 20:4; ISSN PRVCA
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METAL COMPOUNDS
ANGULAR DISTRIBUTION
BARYON-BARYON INTERACTIONS
BOSONS
CHARGED-PARTICLE REACTIONS
COPPER
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FLUORIDES
FLUORINE COMPOUNDS
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
HALIDES
HALOGEN COMPOUNDS
HEAVY ION REACTIONS
INTERACTIONS
ISOBAR MODEL
LEAD
MAGNETIC SPECTROMETERS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESONS
METALS
NEON 20 REACTIONS
NUCLEAR REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PIONS
PIONS PLUS
PSEUDOSCALAR MESONS
SODIUM COMPOUNDS
SODIUM FLUORIDES
SPECTROMETERS
TRANSITION ELEMENTS