Influence of electron cooling on the polarization lifetime of a horizontally polarized storage ring beam

S Karanth,P Wüstner,V Hejny,J Pretz,H Ströher,P Lenisa,Y Senichev,A Saleev,G Ciullo,A Nass,R Talman,Yu Valdau,B Lorentz,D Prasuhn,V Shmakova,I Keshelashvili,S Dymov,D Mchedlishvili,E J Stephenson ,Greta Guidoboni ,A Kacharava ,A Wrońska ,Н Н Николаев ,R Gebel ,Christian Weidemann ,F Rathmann ,A Pesce ,A Lehrach

doi:10.1016/j.nima.2020.164797

Influence of electron cooling on the polarization lifetime of a horizontally polarized storage ring beam

S Karanth, P Wüstner + Show 26 more

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https://doi.org/10.1016/j.nima.2020.164797

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Journal: Nuclear Inst. and Methods in Physics Research, A	Publication Date: Oct 17, 2020
Citations: 1

Affiliation: Jagiellonian University, Institute of Physics, Forschungszentrum Jülich, Jülich Aachen Research Alliance, RWTH Aachen University, University of Ferrara, Samara National Research University, Moscow Institute of Physics and Technology, Landau Institute for Theoretical Physics, Joint Institute for Nuclear Research, Tbilisi State University, Indiana University Bloomington

#COSY Storage Ring #In-plane Polarization + Show 8 more

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Abstract

A previous publication has shown that the in-plane polarization (IPP) component of a polarized 0.97-GeV/c deuteron beam in the COSY storage ring may acquire a polarization half-life in excess of 1000 s through a combination of beam bunching, electron cooling (prior to any spin manipulation), sextupole field adjustment, and a limitation of the beam intensity. This paper documents further tests pointing to additional gains in the IPP lifetime if cooling is active throughout the beam store.

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