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TY - CONF AU - Morozov, V.S. AU - Adams, P. AU - Derbenev, Y.S. AU - Filatov, Y. AU - Huang, H. AU - Kondratenko, A.M. AU - Kondratenko, M.A. AU - Lin, F. AU - Méot, F. AU - Ptitsyn, V. AU - Schmidke, W.B. AU - Zhang, Y. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Spin Response Function for Spin Transparency Mode of RHIC J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - In the Spin Transparency (ST) mode of RHIC, the axes of its Siberian snakes are parallel. The spin tune in the ST mode is zero and the spin motion becomes degenerate: any spin direction repeats every particle turn. In contrast, the lattice of a conventional collider determines a unique stable periodic spin direction, so that the collider operates in the Preferred Spin (PS) mode. Contributions of perturbing magnetic fields to the spin resonance strengths in the PS mode are usually calculated using the spin response function. However, in that form, it is not applicable in the ST mode. This paper presents a response function formalism expanded for the ST mode of operation of conventional colliders with two identical Siberian snakes in the highly-relativistic limit. We present calculations of the spin response function for RHIC in the ST mode. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2791 EP - 2793 KW - resonance KW - collider KW - polarization KW - controls KW - lattice DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPGW124 UR - http://jacow.org/ipac2019/papers/wepgw124.pdf ER -