POSITIVE PION PRODUCTION IN p-p COLLISIONS AT 420 Mev WITH POLARIZED PROTONS

Journal Article · Thu Dec 01 04:00:00 EST 1960 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.120.1874· OSTI ID:4083833

March, R H

The asymmetry in the production of positive pi mesons in p-p collisions was studied, using a 420-Mev, 62% polarized proton beam from the Chicago synchrocyclotron, with nuclear emulsions as the pion detector. The asymmetry at 65 deg in the laboratory for the entire spectrum above 20 Mev in the center-of-mass system was found to be 0.151 plus or minus 0.021, in the direction opposite the elastic scattering that produced the polarized beam. In the region of the spectrum above 40 Mev, results are consistent with those found by other authors for the reaction p plus or minus p - pi /sup +/ plus or minus d. At lower energies where pions associated with final nucleon p states become predominant, the asymmetry decreases rapidly and may possibly reverse. (auth)

• Research Organization: Univ. of Chicago
• NSA Number: NSA-15-005608
• OSTI ID: 4083833
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 120; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BEAMS
COLLISIONS
CYCLOTRONS
ENERGY
ENERGY LEVELS
NUCLEAR EMULSIONS
PHYSICS
PI MESONS
PIONS
POLARIZATION
PRODUCTION
PROTONS
SCATTERING
SPECTRA
SYNCHROCYCLOTRONS
SYNCHROTRONS