Isospin dependence of pion absorption by light nuclei

Journal Article · Mon Oct 24 04:00:00 EDT 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.51.1530· OSTI ID:5576678

Yokota, H; Nakayama, K; Ichimaru, K; Takahata, Y; Suekane, F; Chiba, R; Nakai, K; Arai, E; En'yo, H; Sakaki, S

The spectra of protons and the cross section of the (..pi..,pp) and (..pi..,pn) reactions induced by 65-MeV ..pi../sup +/ and ..pi../sup -/ on C and Al were measured. Ratios R, the pion absorption cross section for a pn nucleon pair to that for a pp or nn nucleon pair, were estimated to be 3.9 +- 1.0 for C, and 3.8 +- 0.9 for Al. These R values are well explained by recent microscopic theories, which suggest that pion absorption on /sup 3/P nucleon pairs is important in the (..pi..,pn) processs for these nuclei.

• Research Organization: Department of Physics, Tokyo Institute of Technology, Ohokayama, Meguro-ku, Tokyo 152 Japan
• OSTI ID: 5576678
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 51:17; ISSN PRLTA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM
ANGULAR DISTRIBUTION
BARYONS
CAPTURE
CARBON
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
GAMMA RADIATION
HADRON REACTIONS
HADRONS
INCLUSIVE INTERACTIONS
INFORMATION
INTERACTIONS
IONIZING RADIATIONS
ISOSPIN
MEASURING INSTRUMENTS
MESON REACTIONS
METALS
MEV RANGE
MEV RANGE 10-100
NEUTRONS
NONMETALS
NUCLEAR REACTIONS
NUCLEONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
PROTON SPECTRA
RADIATION DETECTORS
RADIATIONS
SCINTILLATION COUNTERS
SPECTRA