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Title	Superconducting solenoid system with adjustable shielding factor for precision measurements of the properties of the antiproton
Author(s)	Devlin, Jack A (RIKEN (main) ; CERN) ; Wursten, Elise (RIKEN (main) ; CERN) ; Harrington, James A (RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Higuchi, Takashi (RIKEN (main) ; U. Tokyo (main)) ; Blessing, Pascal E (RIKEN (main) ; Darmstadt, GSI) ; Borchert, Matthias J (RIKEN (main) ; Leibniz U., Hannover) ; Erlewein, Stefan (RIKEN (main) ; CERN ; Heidelberg, Max Planck Inst.) ; Hansen, Jannek J (RIKEN (main)) ; Morgner, Jonathan (RIKEN (main) ; Leibniz U., Hannover) ; Bohman, Matthew A (RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Mooser, Andreas H (RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Smorra, Christian (RIKEN (main)) ; Wiesinger, Markus (RIKEN (main) ; Heidelberg, Max Planck Inst.) ; Blaum, Klaus (Heidelberg, Max Planck Inst.) ; Matsuda, Yasuyuki (U. Tokyo (main)) ; Ospelkaus, Christian (Leibniz U., Hannover ; Braunschweig, Phys. Tech. Bund.) ; Quint, Wolfgang (Darmstadt, GSI) ; Walz, Jochen (Mainz U., Inst. Phys.) ; Yamazaki, Yasunori (RIKEN (main)) ; Ulmer, Stefan (RIKEN (main))
Publication	2019
Number of pages	9
In:	Phys. Rev. Applied 12 (2019) 044012
DOI	10.1103/PhysRevApplied.12.044012
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN AD ; BASE / AD-8
Abstract	A superconducting self-shielding three-solenoid system with an adjustable shielding factor is developed, implemented, and characterized using a single antiproton in a Penning trap. With the tuned system, we suppress external magnetic field disturbances by up to a factor of 225 ± 15, allowing antiproton-to-proton charge-to-mass ratio comparisons with fourfold reduced frequency fluctuations and antiproton magnetic moment determinations with tenfold reduced uncertainty.
Copyright/License	Publication: (License: CC-BY-4.0)

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