Structure in the energy spectra of. pi. /sup +/ mesons in single photoproduction from the nuclei /sup 12/C, /sup 28/Si, and /sup 40/Ca

Journal Article · Thu Sep 01 04:00:00 EDT 1983 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:7096760

Tonapetyan, S G; Khvorostyan, V M; Vinokurov, E A; Nikitin, V A; Lyakhno, Y P; Agranovich, V L

Energy spectra of ..pi../sup +/ mesons have been measured in interaction of 400-MeV electrons with the nuclei /sup 12/C, /sup 28/Si, and /sup 40/Ca. Particles emitted at an angle ..pi../sub lab/ = 90/sup 0/ were recorded in the range of kinetic energies 35--125 MeV by a scintillation counter telescope. As a result of comparison of the spectra of ..pi../sup +/ mesons measured in electron and photon beams, a structure has been observed in the pion spectra which at the present time is hard to explain.

• Research Organization: Khar'kov Physicotechnical Institute, Ukrainian Academy of Sciences
• OSTI ID: 7096760
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 38:3; ISSN SJNCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BASIC INTERACTIONS
BOSONS
CALCIUM 40 TARGET
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
DATA
ELECTROMAGNETIC INTERACTIONS
ELECTRON REACTIONS
ELECTROPRODUCTION
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY SPECTRA
EXPERIMENTAL DATA
HADRONS
INFORMATION
INTERACTIONS
LEPTON REACTIONS
MESONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE PRODUCTION
PHOTOPRODUCTION
PIONS
PIONS PLUS
PSEUDOSCALAR MESONS
SILICON 28 TARGET
SPECTRA
TARGETS