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Polarization of the recoil proton from π0 photoproduction in hydrogen

Maloy, J. O. and Salandin, G. A. and Manfredini, A. and Peterson, V. Z. and Friedman, J. I. and Kendall, H. (1961) Polarization of the recoil proton from π0 photoproduction in hydrogen. Physical Review, 122 (4). pp. 1338-1340. ISSN 0031-899X. doi:10.1103/PhysRev.122.1338.

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The D3/2 nature of the second resonance in neutral single pion photoproduction, γ+p→p+π0, suggested by Peierls, has been confirmed by additional experimental observations of the polarization of the recoil proton over a range of photon energies. The photon energy dependence of the polarization at 90° c.m. is in substantial disagreement with alternative models suggested by Stoppini and Pellegrini, and Landovitz and Marshall if the observed angular distributions are also considered. An experimental method using nuclear emulsion as scatterer-detector, in conjunction with a magnetic spectrometer, is shown to have both good energy resolution and reasonable counting rate.

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Additional Information:©1961 The American Physical Society. Received 9 January 1961. This work was supported in part by the U. S. Atomic Energy Commission, the U.S. Office of Naval Research, and the Italian National Committee for Nuclear Research (C.N.R.N.).
Issue or Number:4
Record Number:CaltechAUTHORS:MALpr61
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6088
Deposited By: Tony Diaz
Deposited On:17 Nov 2006
Last Modified:08 Nov 2021 20:31

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