Vector Analyzing Power in Quasi-Elastic Proton-Proton Scattering at an Energy of 500 MeV/nucleon

I. S. Volkov,A. V. Averyanov,I. E. Vnukov,Yu. V. Gurchin,D. Enache,A. Yu. Isupov,Yu.-T. Karachuk,D. O. Krivenkov,P. K. Kurilkin,V. P. Ladygin,A. N. Livanov,S. M. Piyadin,S. G. Reznikov,Ya. T. Skhomenko,A. A. Terekhin,A. V. Tishevsky,A. N. Khrenov,E. V. Chernykh, M. Yanek

Physics of Particles and Nuclei Letters（2024）

Joint Institute for Nuclear Research | Belgorod State National Research University | National Institute for R&D in Electrical Engineering ICPE-CA | Physics Department

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Abstract

The values of the analyzing power in quasi-elastic proton-proton (pp) scattering are obtained at the Nuclotron Internal Target Station using a polarized deuteron beam at an energy of 500 MeV/nucleon and the polyethylene target. The selection of useful events has been performed using the time and amplitude information from scintillation counters. Asymmetry by protons has been obtained by the subtraction of the carbon background from the data accumulated on polyethylene. The analyzing power values are compared with predictions of SAID partial-wave analysis and the data of other experiments.

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