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Realistic Modeling of the Muon g-2 Experiment Beamlines at Fermilab


The main goal of the Muon g−2 Experiment at Fermilab (E989) is to measure the muon anomalous magnetic moment (aμ, also dubbed as the "anomaly") to unprecedented precision. This new measurement will allow to test the completeness of the Standard Model (SM) and to validate other theoretical models beyond the SM. Simulations of the beamlines from the pion production target to the entrance of the g−2 Storage Ring (SR) using COSY INFINITY contribute to the understanding and characterization of the muon beam production in relation to the statistical and systematic uncertainties of the E989 measurement. The effect of nonlinearites from fringe fields and high-order contributions on the beam delivery system performance are considered, as well as interactions with the beamline elements apertures, particle decay channels, spin dynamics, and beamline misalignments.

D. Tarazona, M. Berz, K. Makino, D. Stratakis, M. J. Syphers, in: Proceedings of 13th International Computational Accelerator Physics Conference 2018, (2019) 141-146.
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