Impedance model of the NICA collider for experiments at SPD

Abstract

The Spin Physics Detector (SPD) is a planned set-up for spin physics research at one of the two interaction points at the Nuclotron-based Ion Collider fAcility (NICA) that is under construction at the Joint Institute for Nuclear Research. Effective studying of the nucleon spin structure in colliding polarized proton beams is possible with the pp collision luminosity L = = 1x1032cm−2s−1 at the energy range of Ecm = 27 GeV. Reaching of necessary level of the luminosity is connected with the accumulation n ~2x1013 particles in each of the collider rings and solving the problems of stable beam dynamics. Building of the collider ring impedance model is necessary step for determining at the design stage possible limitations on the stored beam intensity, and reducing the influence of the impedance effect on the beam dynamics.