Accession Number : AD0269988

Title :   EVIDENCE CONCERNING PION-PION INTERACTIONS BELOW THE 765 MEV RESONANCE

Corporate Author : MICHIGAN UNIV ANN ARBOR

Personal Author(s) : PECK,C. CLYDE ; JONES,LAWRENCE W. ; PERL,MARTIN L.

Report Date : JAN 1962

Pagination or Media Count : 1

Abstract : A search was made for pion-pion resonances in reactions at incident pion spectral energies of 871 Mev and 775 Mev, using a sodium iodide luminescent chamber as a detector. The spectra, the total energy of the two pions in their own barycentric system, are presented and compared with the spectra predicted by phase space alone. The maximum energy which can be obtained in this experiment is 695 Mev and the recoil proton momenta range from 400 to 700 Mev/c. The 871 Mev spectrum shows a deviation from the phase space prediction in the form ofan abrupt rise at an energy of 600 Mev. This rise is most prominent for he spectrum with recoil proton momenta above 550 Mev/c. (Author)

Descriptors :   *CERENKOV RADIATION, *ELASTIC SCATTERING, *PIONS, AMPLIFIERS, BEVERAGES, GAMMA RAYS, GEIGER COUNTERS, INSTRUMENTATION, LUMINESCENCE, NUCLEONS, PARTICLES, PROTON CROSS SECTIONS, RESONANCE ABSORPTION, TARGETS

Distribution Statement : APPROVED FOR PUBLIC RELEASE