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Comparison of electron-proton and positron-proton elastic scattering at four-momentum transfers up to 5.0 (GeV/c)^2

Mar, Jerry and Barish, Barry C. and Pine, Jerome and Coward, David H. and DeStaebler, H. and Litt, J. and Minten, A. and Taylor, Richard E. and Breidenbach, M. (1968) Comparison of electron-proton and positron-proton elastic scattering at four-momentum transfers up to 5.0 (GeV/c)^2. Physical Review Letters, 21 (7). pp. 482-484. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:MARprl68

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Abstract

Measurements of the ratio (R) of positron-proton and electron-proton elastic-scattering cross sections have been made, with the square of the four-momentum transfer (q^2) equal to 0.20, 0.69, 0.73, 1.54, 2.44, 3.27, 3.79, and 5.00 (GeV/c)^2. The measurements, after radiative corrections, are consistent with R=1, with standard errors ranging from ±0.016 to ±0.123. The results give limits for the size of the two-photon effects.


Item Type:Article
Additional Information:©1968 The American Physical Society. Received 31 May 1968. We want to thank R.A. Early, H.W. Kendall, P.N. Kirk, S.C. Loken, and L.W. Mo; and also E. Taylor and other members of the spectrometer group, for their contributions to the experiment. We are especially grateful to the operating staff of the SLAC accelerator, particularly to Roger Miller, for providing the positron beam.
Record Number:CaltechAUTHORS:MARprl68
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:MARprl68
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.21.482
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6119
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:25 Nov 2006
Last Modified:26 Dec 2012 09:17

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