Total cross sections and analyzing powers for the reaction p + p r arrow p + p +. pi. sup 0 near threshold

Journal Article · Sun Dec 01 04:00:00 EST 1991 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.44.2287· OSTI ID:5134086

Stanislaus, S; Horvath, D; Measday, D F; Noble, A J ^[1]; Salomon, M ^[2]

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1. Department of Physics, University of British Columbia, Vancouver, British Columbia, V6T1Z1 (Canada)
2. TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T2A3 (Canada)

We have studied the reaction {ital p}+{ital p}{r arrow}{ital p}+{ital p}+{pi}{sup 0} from 320 to 500 MeV by detecting the {gamma} rays from {pi}{sup 0} decay in coincidence in two large NaI crystals. The obtained differential and total cross sections of the pions are in agreement with previous measurements but are of a higher precision. We have also measured the pion analyzing powers; the first measurement of this observable. Our results are compared with those for the reactions {ital np}{r arrow}{ital NN}{pi}{sup {plus minus}} with confusing conclusions concerning the contribution of {sigma}{sub 01}, the zero isospin pion production channel.

• OSTI ID: 5134086
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Journal Issue: 6 Vol. 44:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
BARYON-BARYON INTERACTIONS
BOSONS
CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MESONS
MEV RANGE
MEV RANGE 100-1000
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PIONS
PIONS NEUTRAL
POLARIZATION
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
PSEUDOSCALAR MESONS
TOTAL CROSS SECTIONS