Polarization of High-Energy Photoprotons from Light Elements

F. F. Liu, F. J. Loeffler, T. R. Palfrey, and Y. S. Kim
Phys. Rev. 128, 2784 – Published 15 December 1962
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Abstract

The polarizations of photoprotons from Li, Be, B, and C were measured by means of a counter polarimeter at proton production angles of 45°, 56°, and 90° in the laboratory system. The photon source was the bremsstrahlung from the Purdue synchrotron operating at a peak energy of 335 MeV. The observed protons had energies in the range 135 to 200 MeV. The left-right asymmetry of scattering of the photoprotons in a carbon analyzer was used to determine their polarization. The observed polarization was small and is consistent both with a zero value and with the theory. A qualitative discussion in terms of quasi-deuteron and isobar models is given.

  • Received 4 June 1962

DOI:https://doi.org/10.1103/PhysRev.128.2784

©1962 American Physical Society

Authors & Affiliations

F. F. Liu*, F. J. Loeffler, T. R. Palfrey, and Y. S. Kim

  • Department of Physics, Purdue University, Lafayette, Indiana

  • *This work constituted part of a thesis submitted by F. F. Liu to the Purdue Graduate School in partial fulfillment of the requirements for the Ph.D. degree. Present address: Stanford Linear Accelerator Center, Stanford University, Stanford, California.

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Vol. 128, Iss. 6 — December 1962

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