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Observation of inverse electroproduction of pions in /sup 7/Li nuclei

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:6235862
; ;
Inverse electroproduction of pions has been observed in the /sup 7/Li nucleus: ..pi../sup +/+/sup 7/Li ..-->.. e/sup +/+e/sup -/+X at a pion kinetic energy 380 MeV. The distribution of the reaction events in the square of the missing mass is satisfactorily described on the assumption that about half of the detected events belong to the reaction channel with formation in the final state of a /sup 7/Be nucleus in the ground state (/sup 7/Be) or in an excited state (/sup 7/Be*): ..pi../sup +/+/sup 7/Li..-->..e/sup +/+e/sup -/+/sup 7/Be (/sup 7/Be*). The differential cross section for this reaction for electrons and positrons with energy greater than 70 MeV emitted at a lab angle approx.65/sup 0/ is d/sup 2/sigma/d..cap omega../sup 2/ = (1.3 +- 0.3) x 10/sup -32/ cm/sup 2//sr/sup 2/.
Research Organization:
Joint Institute for Nuclear Research
OSTI ID:
6235862
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 36:2; ISSN SJNCA
Country of Publication:
United States
Language:
English

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Related Subjects

651325* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
BASIC INTERACTIONS
BERYLLIUM 7
BERYLLIUM ISOTOPES
BETA DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DAYS LIVING RADIOISOTOPES
DIFFERENTIAL CROSS SECTIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON CAPTURE RADIOISOTOPES
ELECTROPRODUCTION
ENERGY RANGE
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HADRON REACTIONS
INFORMATION
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
LITHIUM 7 TARGET
MASS
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
MISSING MASS
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PARTICLE PRODUCTION
PION PLUS REACTIONS
PION REACTIONS
RADIOISOTOPES
TARGETS