Phys. Rev. Lett. 21, 12791282 (1968); DOI: 10.1103/PhysRevLett.21.1279

Test of Time-Reversal Invariance in Electroproduction Interactions Using a Polarized Proton Target

J. R. Chen, J. Sanderson, J. A. Appel, G. Gladding, M. Goitein, K. Hanson, D. C. Imrie, T. Kirk, R. Madaras, R. V. Pound, L. Price, Richard Wilson, and C. Zajde


Electrons have been scattered inelastically from an alcohol-water target containing protons polarized normal to the scattering plane. Scattered-electron energies corresponding to the excitation of the 1236-, 1512-, and 1688-MeV nucleon resonances were observed at four-momentum transfers between 0.2 and 0.7 (BeV/c)^2. A search was made for changes in the intensity of the scattered electrons as the target polarization was reversed. None was seen.

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