Author: Jay Frederick Kunze
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Polarization of the recoil proton in the scattering of 225 Mev [Greek symbol pi (negative superscript)] Mesons from protons
Polarization of Recoil Protons in Pion-Proton Elastic Scattering at 523, 572, and 689 Mev (thesis).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Angular distributions of recoil-proton polarization for elastic scattering of positive and negative pi mesons on protons were measured at 523, 572, and 689 Mev incidentpion kinetic energy. The pion source was an internal target of the Berkeley Bevatron. Polarization measurements were made by observing the azimuthal asymmetry of sample angular distributions of recoil protons that scatter in large carbon-plate spark chambers. The spark chambers proved to be very suitable polarization analyzerdetectors. The spark chambers were triggered by an array of scintillation and Cerenkov counters that identified the particles entering the chambers as recoil protons from elastic pion-proton scattering. Two plausible nonunique sets of phase shifts were obtained by employing: restrictive assumptions related to the higher resonances, available pion-proton total and differential cross sections measured at nearby energies, and the measurements of this experiment. One set is characterized by a J = 3/2, T = 1/2, D-wave resonance; the other set is characterized by a J = 3/2, T = 1/2, P-wave resonance at 600-Mev incidentpion energy. 38 references. (auth).
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Angular distributions of recoil-proton polarization for elastic scattering of positive and negative pi mesons on protons were measured at 523, 572, and 689 Mev incidentpion kinetic energy. The pion source was an internal target of the Berkeley Bevatron. Polarization measurements were made by observing the azimuthal asymmetry of sample angular distributions of recoil protons that scatter in large carbon-plate spark chambers. The spark chambers proved to be very suitable polarization analyzerdetectors. The spark chambers were triggered by an array of scintillation and Cerenkov counters that identified the particles entering the chambers as recoil protons from elastic pion-proton scattering. Two plausible nonunique sets of phase shifts were obtained by employing: restrictive assumptions related to the higher resonances, available pion-proton total and differential cross sections measured at nearby energies, and the measurements of this experiment. One set is characterized by a J = 3/2, T = 1/2, D-wave resonance; the other set is characterized by a J = 3/2, T = 1/2, P-wave resonance at 600-Mev incidentpion energy. 38 references. (auth).
Scattering of 250-MeV Positive Pi Mesons from a Polarized Proton Target
Author: Claude Henry Schultz
Publisher:
ISBN:
Category : Mesons
Languages : en
Pages : 126
Book Description
Publisher:
ISBN:
Category : Mesons
Languages : en
Pages : 126
Book Description
Polarization of Recoil Protons in Pion-proton Elastic Scattering at 523, 572, and 689 MeV.
Author: Richard Domingo Eandi
Publisher:
ISBN:
Category : Elastic scattering (Physics).
Languages : en
Pages : 90
Book Description
Publisher:
ISBN:
Category : Elastic scattering (Physics).
Languages : en
Pages : 90
Book Description
The Recoil Proton Polarization In. Pi. P Elastic Scattering
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The polarization of the recoil proton for .pi.p and .pi.−p elastic scattering has been measured for various angles at 547 MeV/c and 625 MeV/c by a collaboration involving The George Washington University; the University of California, Los Angeles; and Abilene Christian University. The experiment was performed at the P3 East experimental area of the Los Alamos Meson Physics Facility. Beam intensities varied from 0.4 to 1.0 x 107 .pi.−'s/sec and from 3.0 to 10.0 x 107 .pi./sup +/'s/sec. The beam spot size at the target was 1 cm in the horizontal direction by 2.5 cm in the vertical direction. A liquid-hydrogen target was used in a flask 5.7 cm in diameter and 10 cm high. The scattered pion and recoil proton were detected in coincidence using the Large Acceptance Spectrometer (LAS) to detect and momentum analyze the pions and the JANUS recoil proton polarimeter to detect and measure the polarization of the protons. Results from this experiment are compared with previous measurements of the polarization, with analyzing power data previously taken by this group, and to partial-wave analysis predictions. 12 refs., 53 figs., 18 tabs.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The polarization of the recoil proton for .pi.p and .pi.−p elastic scattering has been measured for various angles at 547 MeV/c and 625 MeV/c by a collaboration involving The George Washington University; the University of California, Los Angeles; and Abilene Christian University. The experiment was performed at the P3 East experimental area of the Los Alamos Meson Physics Facility. Beam intensities varied from 0.4 to 1.0 x 107 .pi.−'s/sec and from 3.0 to 10.0 x 107 .pi./sup +/'s/sec. The beam spot size at the target was 1 cm in the horizontal direction by 2.5 cm in the vertical direction. A liquid-hydrogen target was used in a flask 5.7 cm in diameter and 10 cm high. The scattered pion and recoil proton were detected in coincidence using the Large Acceptance Spectrometer (LAS) to detect and momentum analyze the pions and the JANUS recoil proton polarimeter to detect and measure the polarization of the protons. Results from this experiment are compared with previous measurements of the polarization, with analyzing power data previously taken by this group, and to partial-wave analysis predictions. 12 refs., 53 figs., 18 tabs.
Elastic Scattering of Pi-mesons on Protons in the Energy Region 550 to 1020 Mev
Author: Calvin D. Wood
Publisher:
ISBN:
Category : Differential cross sections
Languages : en
Pages : 88
Book Description
Publisher:
ISBN:
Category : Differential cross sections
Languages : en
Pages : 88
Book Description
Production of [Pi]+-mesons by 340 Mev Protons on Protons at 00 to the Beam
Author: W. F. Cartwright
Publisher:
ISBN:
Category : Mesons
Languages : en
Pages : 62
Book Description
Publisher:
ISBN:
Category : Mesons
Languages : en
Pages : 62
Book Description
Recoil-proton Polarization in Negative Kaon-proton Elastic Scattering Between 700 and 1400 MeV/c Incident Kaon Momenta
Elastic K+-proton Scattering at 910 MeV/c
Scattering of Negative Pions on Protons at 310 MeV
Author: Olav T. Vik
Publisher:
ISBN:
Category : Phase shift (Nuclear physics).
Languages : en
Pages : 78
Book Description
Publisher:
ISBN:
Category : Phase shift (Nuclear physics).
Languages : en
Pages : 78
Book Description