Measurement of analyzing power for proton-carbon elastic scattering in the coulomb-nuclear interference region with a 22-GeV/c polarized proton beam

J Tojo; I Alekseev; M Bai; B Bassalleck; G Bunce; A Deshpande; J Doskow; S Eilerts; D E Fields; Y Goto; H Huang; V Hughes; K Imai; M Ishihara; V Kanavets; K Kurita; K Kwiatkowski; B Lewis; W Lozowski; Y Makdisi; H-O Meyer; B V Morozov; M Nakamura; B Przewoski; T Rinckel; T Roser; A Rusek; N Saito; B Smith; D Svirida; M Syphers; A Taketani; T L Thomas; D Underwood; D Wolfe; K Yamamoto; L Zhu

doi:10.1103/PhysRevLett.89.052302

Measurement of analyzing power for proton-carbon elastic scattering in the coulomb-nuclear interference region with a 22-GeV/c polarized proton beam

Phys Rev Lett. 2002 Jul 29;89(5):052302. doi: 10.1103/PhysRevLett.89.052302. Epub 2002 Jul 16.

Authors

Affiliation

¹ Department of Physics, Kyoto University, Kyoto 606-8502, Japan.

PMID: 12144435
DOI: 10.1103/PhysRevLett.89.052302

Abstract

The analyzing power for proton-carbon elastic scattering in the Coulomb-nuclear interference region of momentum transfer, 9.0x10(-3)<-t<4.1x10(-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 nonflip amplitude, r(5), was obtained from the analyzing power to be Rer(5)=0.088+/-0.058 and Imr(5)=-0.161+/-0.226.