Two-symmetry Penning-Ioffe trap for antihydrogen cooling and spectroscopy

E. Tardiff; X. Fan; G. Gabrielse; D. Grzonka; C. Hamley; E. A. Hessels; N. Jones; G. Khatri; W. S. Kolthammer; D. Martinez Zambrano; C. Meisenhelder; T. Morrison; E. Nottet; E. Novitski; C. H. Storry

doi:10.1016/j.nima.2020.164279

Two-symmetry Penning-Ioffe trap for antihydrogen cooling and spectroscopy

E. Tardiff, X. Fan, G. Gabrielse^*, D. Grzonka, C. Hamley, E. A. Hessels, N. Jones, G. Khatri, W. S. Kolthammer, D. Martinez Zambrano, C. Meisenhelder, T. Morrison, E. Nottet, E. Novitski, C. H. Storry

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

High-accuracy spectroscopic comparisons of trapped antihydrogen atoms (H¯) and hydrogen atoms (H) promise to stringently test the fundamental CPT symmetry invariance of the standard model of particle physics. ATRAP's nested Penning-Ioffe trap was developed for such studies. The first of its unique features is that its magnetic Ioffe trap for H¯atoms can be switched between quadrupole and octupole symmetries. The second is that it allows laser and microwave access perpendicular to the central axis of the traps.

Original language	English (US)
Article number	164279
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	977
DOIs	https://doi.org/10.1016/j.nima.2020.164279
State	Published - Oct 11 2020

Funding

We are grateful to Bruce Gold at Joining Technologies for his intricate electron beam welding of the titanium enclosure for the Ioffe coils. We’d like to recognize the following former members of the ATRAP collaboration for their contributions to early development tests of the second-generation Ioffe trap: Rita Kalra, Martin Kossick, and Stephan Malbrunot (né Ettenauer). M. Kossick also contributed to early design work for the VCLs, and S. Malbrunot contributed to the vacuum enclosure design. We thank Phil Richerme for his early work on the quench protection system and large-diameter electrodes. This work was supported by the NSF and by the AFOSR .

Keywords

ATRAP
Antihydrogen
Ioffe Trap
Neutral Particle Trap

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2020.164279

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Tardiff, E., Fan, X., Gabrielse, G., Grzonka, D., Hamley, C., Hessels, E. A., Jones, N., Khatri, G., Kolthammer, W. S., Martinez Zambrano, D., Meisenhelder, C., Morrison, T., Nottet, E., Novitski, E., & Storry, C. H. (2020). Two-symmetry Penning-Ioffe trap for antihydrogen cooling and spectroscopy. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 977, Article 164279. https://doi.org/10.1016/j.nima.2020.164279

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abstract = "High-accuracy spectroscopic comparisons of trapped antihydrogen atoms (H¯) and hydrogen atoms (H) promise to stringently test the fundamental CPT symmetry invariance of the standard model of particle physics. ATRAP's nested Penning-Ioffe trap was developed for such studies. The first of its unique features is that its magnetic Ioffe trap for H¯atoms can be switched between quadrupole and octupole symmetries. The second is that it allows laser and microwave access perpendicular to the central axis of the traps.",

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doi = "10.1016/j.nima.2020.164279",

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Tardiff, E, Fan, X , Gabrielse, G, Grzonka, D, Hamley, C, Hessels, EA, Jones, N, Khatri, G, Kolthammer, WS, Martinez Zambrano, D, Meisenhelder, C, Morrison, T, Nottet, E, Novitski, E & Storry, CH 2020, 'Two-symmetry Penning-Ioffe trap for antihydrogen cooling and spectroscopy', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 977, 164279. https://doi.org/10.1016/j.nima.2020.164279

TY - JOUR

T1 - Two-symmetry Penning-Ioffe trap for antihydrogen cooling and spectroscopy

AU - Tardiff, E.

AU - Fan, X.

AU - Gabrielse, G.

AU - Grzonka, D.

AU - Hamley, C.

AU - Hessels, E. A.

AU - Jones, N.

AU - Khatri, G.

AU - Kolthammer, W. S.

AU - Martinez Zambrano, D.

AU - Meisenhelder, C.

AU - Morrison, T.

AU - Nottet, E.

AU - Novitski, E.

AU - Storry, C. H.

PY - 2020/10/11

Y1 - 2020/10/11

N2 - High-accuracy spectroscopic comparisons of trapped antihydrogen atoms (H¯) and hydrogen atoms (H) promise to stringently test the fundamental CPT symmetry invariance of the standard model of particle physics. ATRAP's nested Penning-Ioffe trap was developed for such studies. The first of its unique features is that its magnetic Ioffe trap for H¯atoms can be switched between quadrupole and octupole symmetries. The second is that it allows laser and microwave access perpendicular to the central axis of the traps.

AB - High-accuracy spectroscopic comparisons of trapped antihydrogen atoms (H¯) and hydrogen atoms (H) promise to stringently test the fundamental CPT symmetry invariance of the standard model of particle physics. ATRAP's nested Penning-Ioffe trap was developed for such studies. The first of its unique features is that its magnetic Ioffe trap for H¯atoms can be switched between quadrupole and octupole symmetries. The second is that it allows laser and microwave access perpendicular to the central axis of the traps.

KW - ATRAP

KW - Antihydrogen

KW - Ioffe Trap

KW - Neutral Particle Trap

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Two-symmetry Penning-Ioffe trap for antihydrogen cooling and spectroscopy

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