Electroproduction of. pi. /sup +/ from /sup 10/B and its relation to electron scattering

Journal Article · Fri Oct 01 04:00:00 EDT 1982 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.26.1610· OSTI ID:6712556

Zulkoskey, B W; Sealock, R M; Caplan, H S; Bergstrom, J C

The electroproduction of 12.3 +- 0.7 MeV positive pions from /sup 10/B, leading to low-lying states in /sup 10/Be, has been measured in the angular range theta/sub ..pi../ = 30/sup 0/--140/sup 0/ for incident electron energies E/sub e/ = 158.5--165.0 MeV. The unique character of M3 transitions in the p shell permits a direct comparison of d/sup 2/sigma/dE/sub ..pi../d..cap omega../sub ..pi../ with the analog electron scattering form factors in /sup 10/B, assuming the strong ..pi..-nucleus interaction can be neglected. For the two lowest T = 1 states, the (e,..pi../sup +/) angular distributions agree with the M3 form factors. The convective term in the M1 form factor for the third T = 1 state is deduced from a comparison of the (e,..pi../sup +/) and (e,e') data and is in good agreement with recent radiative pion capture results. The photoproduction cross section leading to the /sup 10/Be ground state is estimated.

• Research Organization: Saskatchewan Accelerator Laboratory, University of Saskatchewan, Saskatoon, Canada S7N 0W0
• OSTI ID: 6712556
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 26:4; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ANGULAR DISTRIBUTION
BASIC INTERACTIONS
BERYLLIUM 10
BERYLLIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BORON 10 TARGET
BOSONS
CHARGED-PARTICLE REACTIONS
DISTRIBUTION
ELECTROMAGNETIC INTERACTIONS
ELECTRON REACTIONS
ELECTROPRODUCTION
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
FORM FACTORS
HADRONS
INELASTIC SCATTERING
INTERACTIONS
ISOTOPES
LEPTON REACTIONS
LIGHT NUCLEI
M3-TRANSITIONS
MESONS
MEV RANGE
MEV RANGE 100-1000
MULTIPOLE TRANSITIONS
NUCLEAR REACTIONS
NUCLEI
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PHOTOPRODUCTION
PIONS
PIONS PLUS
PSEUDOSCALAR MESONS
RADIOISOTOPES
SCATTERING
TARGETS
YEARS LIVING RADIOISOTOPES