Measurement of Analyzing Power for Proton-Carbon Elastic Scattering in the Coulomb-Nuclear Interference Region with a 22-GeV/c Polarized Proton Beam
- Tojo, J
- Alekseev, I
- Bai, M
- Bassalleck, B
- Bunce, G M
- Deshpande, A A
- Doskow, J
- Eilerts, S W
- Fields, D E
- Goto, Y
- Huang, H
- Hughes, V
- Imai, K
- Ishihara, M
- Kanavets, V P
- Kurita, K
- Kwiatkowski, K K
- Lewis, B
- Lozowski, W R
- Makdisi, Y I
- Meyer, H O
- Morozov, B V
- Nakamura, M
- Von Przewoski, B
- Rinckel, T
- Roser, T
- Rusek, A
- Saitô, N
- Smith, B
- Svirida, D N
- Syphers, M J
- Taketani, A
- Thomas, T L
- Underwood, D
- Wolfe, D
- Yamamoto, K
- Zhu, L
DOIAbstract
The analyzing power for proton-carbon elastic scattering in the coulomb-nuclear interference region of momentum transfer, $9.0\times10^{-3}<-t<4.1\times10^{-2}$ (GeV/$c)^{2}$, was measured with a 21.7 GeV/$c$ polarized proton beam at the Alternating Gradient Synchrotron of Brookhaven National Laboratory. The ratio of hadronic spin-flip to non-flip amplitude, $r_5$, was obtained from the analyzing power to be $\text{Re} r_5=0.088\pm 0.058$ and $\text{Im} r_5=-0.161\pm 0.226$
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