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We have measured the multiplicities of particles emitted in collisions between π's and p's of 1.5 to 2.5 GeV/c momentum with He and Ne nuclei in a streamer chamber. The chamber gas served as the target as well as the detecting medium. Because of the low density and 4π solid angle of the detector, it was possible to detect nuclear fragments with energies less than 5 MeV, and to essentially count all the particles emitted in a collision. Event distributions as a function of track multiplicity were obtained as well as correlated event distributions. NUCLEAR REACTIONS He (proton or pion, fragments and pions), Ne (proton or pion, fragments and pions), E=1.5, 2.0, 2.5 BeV/c; streamer chamber gas used as target with fragment energies as low as 5 MeV. Measured multiplicities and correlations of produced particle types.
CHARGED+ means PI+ or fast P, FRAGT - low momentum P or DEUT,TRIT,HE3,HE4, CHARGED- mostly PI-.
CHARGED+ means PI+ or fast P, FRAGT - low momentum P or DEUT,TRIT,HE3,HE4, CHARGED- mostly PI-.
CHARGED+ means PI+ or fast P, FRAGT - low momentum P or DEUT,TRIT,HE3,HE4, CHARGED- mostly PI-.
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Axis error includes +- 6/6 contribution (THE NUMBER OF NEUTRAL STARS WAS CORRECTED FOR ACCIDENTAL STARS WITHOUT FORMER INTERACTIONS AND FOR STARS PRODUCED BY KL MESONS, THE LAMBDA AND KS PARTICLES YIELD BEING NEGLECTEDTHE MOMENTUM OF NEUTRON IN THE STAR WAS TAKEN OF ONE AND A HALF OF TOTAL MOMENTUM OF CHARGED PARTICLES IN THE STAR).
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FOR P< 1. GEV DATA FOR PROTONS WITH P < .7 WERE USED.