ELASTIC SCATTERING AND SINGLE MESON PRODUCTION IN PROTON-PROTON COLLISIONS AT 2.85 Bev

Journal Article · Fri Sep 15 04:00:00 EDT 1961 · Physical Review (U.S.) Superseded in part by Phys.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.123.2160· OSTI ID:4840275

Smith, G A; Courant, H; Fowler, E C; Kraybill, H; Sandweiss, J; Taft, H

The Brookhaven National Laboratory twenty-inch liquid hydrogen bubble chamber was exposed to a monoenergetic beam of 2.85-Bev protons, elastically scattered from a carbon target in the internal beam of the Cosmotron. All two- prong events, excluding strange particle events, were studied by the Yale High- Energy Group. The remaining interactions were studied by the Brookhaven Bubble Chamber Group. Elastic scattering was found to be mostly pure diffraction scattering at center-of-mass angles up to about thirty-five degrees. Some phase shift and/or tapering of the proton edge was required to fit the data at larger angles. No polarization effects in the proton-carbon scattering were observed using hydrogen as an analyzer of polarized protons. Nucleonic isobar formation in the T = 3/2, J = 3/2 state was found to account for a large part of single pion production. High- orbital angular-momentum states were found to be greatly favored in single pion production. The isobar model of Lindenbaum and Stemheimer gave good agreement with the observed nucleon and pion energy spectra. No polarization or alignment effects were observed for the isobar assumed in this model. (auth)

• Research Organization: Yale Univ., New Haven; Brookhaven National Lab., Upton, N.Y.
• NSA Number: NSA-15-031544
• OSTI ID: 4840275
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 123; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BUBBLE CHAMBERS
CARBON
DIFFRACTION
ENERGY
ENERGY RANGE
GEV RANGE
HYDROGEN
INTERACTIONS
IRRADIATION
MESONS
PARTICLE TRACKS
PHYSICS
PIONS
POLARIZATION
PRODUCTION
PROTON BEAMS
PROTONS
SCATTERING
SPECTRA
STRANGE PARTICLES