https://doi.org/10.1140/epja/i2018-12659-2
Regular Article - Experimental Physics
Measurement of the analyzing powers in 
elastic and 
quasi-elastic scattering at small angles
1
St. Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, RU-188350, Gatchina, Russia
2
High Energy Physics Institute, Tbilisi State University, GE-0186, Tbilisi, Georgia
3
Institut für Kernphysik, Forschungszentrum Jülich, D-52425, Jülich, Germany
4
Laboratory of Nuclear Problems, JINR, RU-141980, Dubna, Russia
5
University of Ferrara and INFN, I-44100, Ferrara, Italy
6
Institut für Kernphysik, Universität Münster, D-48149, Münster, Germany
7
H. Niewodniczański Institute of Nuclear Physics PAN, PL-31342, Kraków, Poland
8
SMART|EDM-Lab, Tbilisi State University, GE-0179, Tbilisi, Georgia
9
Institut für Kern- und Hadronenphysik, Forschungszentrum Rossendorf, D-01314, Dresden, Germany
10
Department of Physics, M. V. Lomonosov Moscow State University, RU-119991, Moscow, Russia
11
Dubna State University, RU-141980, Dubna, Russia
12
Physics and Astronomy Department, UCL, WC1E 6BT, London, UK
* e-mail: c.wilkin@ucl.ac.uk
Received:
6
August
2018
Accepted:
25
November
2018
Published online:
19
December
2018
The analyzing powers in proton-deuteron elastic and proton-neutron quasi-elastic scattering have been measured at small angles using a polarized proton beam at the COSY storage ring incident on an unpolarized deuterium target. The data were taken at 796MeV and five higher energies from 1600MeV to 2400MeV. The analyzing power in pd elastic scattering was studied by detecting the low energy recoil deuteron in telescopes placed symmetrically in the COSY plane to the left and right of the beam whereas for pn quasi-elastic scattering a low energy proton was registered in one of the telescopes in coincidence with a fast scattered proton measured in the ANKE magnetic spectrometer. Though the experiment explores new domains, the results are consistent with the limited published information.
© The Author(s), 2018
