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@PROCEEDINGS{Shankar:1017836,
author = {Shankar, Rahul and Lenisa, Paolo and Lehrach, Andreas},
title = {{O}ptimization of spin-coherence time for electric dipole
moment measurements},
volume = {PSTP2022},
publisher = {Sissa Medialab Trieste, Italy},
reportid = {FZJ-2023-04359},
series = {Proceedings of Science (PoS)},
year = {2023},
abstract = {The JEDI experiment is dedicated to the search for the
electric dipole moment (EDM) of charged particles using
storage rings, which can be a very sensitive probe of
physics beyond the Standard Model. In order to reach the
highest possible sensitivity, a fundamental parameter to be
optimized is the Spin Coherence Time (SCT), i.e., the time
interval within which the particles of the stored beam
maintain a net polarization greater than 1/e. To identify
the working conditions that maximize SCT, accurate
spin-dynamics simulations with the code BMAD have been
performed on the lattice of a "prototype" storage ring which
uses a combination of electric and magnetic fields for
bending. This contribution will present an analysis of the
mechanisms behind the decoherence, some techniques to
maximize SCT through the optimization of second-order
focusing parameters, and the exclusive beam and spin
dynamics effects of the electric component of bending
fields.},
month = {Sep},
date = {2022-09-26},
organization = {19th Workshop on Polarized Sources,
Targets and Polarimetry, Mainz
(Germany), 26 Sep 2022 - 30 Sep 2022},
cin = {IKP-4},
cid = {I:(DE-Juel1)IKP-4-20111104},
pnm = {621 - Accelerator Research and Development (POF4-621) / 613
- Matter and Radiation from the Universe (POF4-613)},
pid = {G:(DE-HGF)POF4-621 / G:(DE-HGF)POF4-613},
experiment = {EXP:(DE-Juel1)JEDI-20170712},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)26},
doi = {10.22323/1.433.0024},
url = {https://juser.fz-juelich.de/record/1017836},
}