Measurement of the Induced Proton Polarization P_n in the 12C(e,e'\vec{p}) Reaction

R. J. Woo; D. H. Barkhuff; W. Bertozzi; D. Dale; G. Dodson; K. A. Dow; M. B. Epstein; M. Farkhondeh; J. M. Finn; S. Gilad; M. K. Jones; K. Joo; J. J. Kelly; S. Kowalski; R. W. Lourie; R. Madey; D. J. Margaziotis; P. Markowitz; J. I. McIntyre; C. Mertz; B. D. Milbrath; J. Mitchell; C. F. Perdrisat; V. Punjabi; P. M. Rutt; A. J. Sarty; D. Tieger; C. Tschalaer; W. Turchinetz; P. E. Ulmer; C. Vellidis; S. P. Van Verst; G. A. Warren; L. Weinstein

doi:10.1103/physrevlett.80.456

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Measurement of the Induced Proton Polarization P_n in the 12C(e,e'\vec{p}) Reaction

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Abstract

The first measurements of the induced proton polarization, P_n, for the 12C (e,e'\vec{p}) reaction are reported. The experiment was performed at quasifree kinematics for energy and momentum transfer (ω,q) \approx (294 MeV, 756 MeV/c) and sampled a recoil momentum range of 0-250 MeV/c. The induced polarization arises from final-state interactions and for these kinematics is dominated by the real part of the spin-orbit optical potential. The distorted-wave impulse approximation provides good agreement with data for the 1p_{3/2} shell. The data for the continuum suggest that both the 1s_{1/2} shell and underlying l > 1 configurations contribute.

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R. J. Woo, D. H. Barkhuff, W. Bertozzi, D. Dale, G. Dodson, K. A. Dow, M. B. Epstein, M. Farkhondeh, J. M. Finn, S. Gilad, M. K. Jones, K. Joo, J. J. Kelly, S. Kowalski, R. W. Lourie, R. Madey, D. J. Margaziotis, P. Markowitz, J. I. McIntyre, C. Mertz, B. D. Milbrath, J. Mitchell, C. F. Perdrisat, V. Punjabi, P. M. Rutt, A. J. Sarty, D. Tieger, C. Tschalaer, W. Turchinetz, P. E. Ulmer, C. Vellidis, S. P. Van Verst, G. A. Warren, L. Weinstein. 1997-11-29. Measurement of the Induced Proton Polarization P_n in the 12C(e,e'\vec{p}) Reaction. https://doi.org/10.1103/physrevlett.80.456

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