Limit on the electric charge of antihydrogen

A. Capra; C. Amole; M. D. Ashkezari; M. Baquero-Ruiz; W. Bertsche; E. Butler; C. L. Cesar; M. Charlton; S. Eriksson; J. Fajans; T. Friesen; M. C. Fujiwara; D. R. Gill; A. Gutierrez; J. S. Hangst; W. N. Hardy; M. E. Hayden; C. A. Isaac; S. Jonsell; L. Kurchaninov; A. Little; J. T. K. McKenna; S. Menary; S. C. Napoli; P. Nolan; K. Olchanski; A. Olin; A. Povilus; P. Pusa; F. Robicheaux; E. Sarid; D. M. Silveira; C. So; T. D. Tharp; R. I. Thompson; D. P. van der Werf; Z. Vendeiro; J. S. Wurtele; A. I. Zhmoginov; A. E. Charman

doi:10.1007/s10751-016-1382-6

Limit on the electric charge of antihydrogen

A. Capra, C. Amole, M. D. Ashkezari, M. Baquero-Ruiz, W. Bertsche, E. Butler, C. L. Cesar, M. Charlton, S. Eriksson, J. Fajans, T. Friesen, M. C. Fujiwara, D. R. Gill, A. Gutierrez, J. S. Hangst, W. N. Hardy, M. E. Hayden, C. A. Isaac, S. Jonsell, L. KurchaninovA. Little, J. T. K. McKenna, S. Menary, S. C. Napoli, P. Nolan, K. Olchanski, A. Olin, A. Povilus, P. Pusa, F. Robicheaux, E. Sarid, D. M. Silveira, C. So, T. D. Tharp, R. I. Thompson, D. P. van der Werf, Z. Vendeiro, J. S. Wurtele, A. I. Zhmoginov, A. E. Charman

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

Abstract

The ALPHA collaboration has successfully demonstrated the production and the confinement of cold antihydrogen, H̅. An analysis of trapping data allowed a stringent limit to be placed on the electric charge of the simplest antiatom. Charge neutrality of matter is known to a very high precision, hence a neutrality limit of H̅ provides a test of CPT invariance. The experimental technique is based on the measurement of the deflection of putatively charged H̅ in an electric field. The tendency for trapped H̅ atoms to be displaced by electrostatic fields is measured and compared to the results of a detailed simulation of H̅ dynamics in the trap. An extensive survey of the systematic errors was performed, and this work focuses on those due to the silicon vertex detector, which is the device used to determine the H̅ annihilation position. The limit obtained on the charge of the H̅ atom is Q = (−1.3 ± 1.8 ± 0.4) × 10⁻⁸, representing the first precision measurement with H̅ [1].

Original language	English
Article number	9
Journal	Hyperfine Interactions
Volume	238
Issue number	1
DOIs	https://doi.org/10.1007/s10751-016-1382-6
State	Published - 1 Nov 2017
Externally published	Yes

Keywords

Antihydrogen
Atom trapping
CPT
Electric charge
Electric neutrality
Fundamental symmetries
Position sensitive detector
Quantum anomaly
Silicon detector

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Condensed Matter Physics
Physical and Theoretical Chemistry

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10.1007/s10751-016-1382-6

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Capra, A., Amole, C., Ashkezari, M. D., Baquero-Ruiz, M., Bertsche, W., Butler, E., Cesar, C. L., Charlton, M., Eriksson, S., Fajans, J., Friesen, T., Fujiwara, M. C., Gill, D. R., Gutierrez, A., Hangst, J. S., Hardy, W. N., Hayden, M. E., Isaac, C. A., Jonsell, S., ... Charman, A. E. (2017). Limit on the electric charge of antihydrogen. Hyperfine Interactions, 238(1), Article 9. https://doi.org/10.1007/s10751-016-1382-6

@article{25ed25cfe96049c9be1e0abb54d318d2,

title = "Limit on the electric charge of antihydrogen",

abstract = "The ALPHA collaboration has successfully demonstrated the production and the confinement of cold antihydrogen, H̅. An analysis of trapping data allowed a stringent limit to be placed on the electric charge of the simplest antiatom. Charge neutrality of matter is known to a very high precision, hence a neutrality limit of H̅ provides a test of CPT invariance. The experimental technique is based on the measurement of the deflection of putatively charged H̅ in an electric field. The tendency for trapped H̅ atoms to be displaced by electrostatic fields is measured and compared to the results of a detailed simulation of H̅ dynamics in the trap. An extensive survey of the systematic errors was performed, and this work focuses on those due to the silicon vertex detector, which is the device used to determine the H̅ annihilation position. The limit obtained on the charge of the H̅ atom is Q = (−1.3 ± 1.8 ± 0.4) × 10−8, representing the first precision measurement with H̅ [1].",

keywords = "Antihydrogen, Atom trapping, CPT, Electric charge, Electric neutrality, Fundamental symmetries, Position sensitive detector, Quantum anomaly, Silicon detector",

author = "A. Capra and C. Amole and Ashkezari, {M. D.} and M. Baquero-Ruiz and W. Bertsche and E. Butler and Cesar, {C. L.} and M. Charlton and S. Eriksson and J. Fajans and T. Friesen and Fujiwara, {M. C.} and Gill, {D. R.} and A. Gutierrez and Hangst, {J. S.} and Hardy, {W. N.} and Hayden, {M. E.} and Isaac, {C. A.} and S. Jonsell and L. Kurchaninov and A. Little and {K. McKenna}, {J. T.} and S. Menary and Napoli, {S. C.} and P. Nolan and K. Olchanski and A. Olin and A. Povilus and P. Pusa and F. Robicheaux and E. Sarid and Silveira, {D. M.} and C. So and Tharp, {T. D.} and Thompson, {R. I.} and {van der Werf}, {D. P.} and Z. Vendeiro and Wurtele, {J. S.} and Zhmoginov, {A. I.} and Charman, {A. E.}",

note = "Publisher Copyright: {\textcopyright} 2016, Springer International Publishing Switzerland.",

year = "2017",

month = nov,

day = "1",

doi = "10.1007/s10751-016-1382-6",

language = "English",

volume = "238",

journal = "Hyperfine Interactions",

issn = "0304-3843",

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Capra, A, Amole, C, Ashkezari, MD, Baquero-Ruiz, M, Bertsche, W, Butler, E, Cesar, CL, Charlton, M, Eriksson, S, Fajans, J, Friesen, T, Fujiwara, MC, Gill, DR, Gutierrez, A, Hangst, JS, Hardy, WN, Hayden, ME, Isaac, CA, Jonsell, S, Kurchaninov, L, Little, A, K. McKenna, JT, Menary, S, Napoli, SC, Nolan, P, Olchanski, K, Olin, A, Povilus, A, Pusa, P, Robicheaux, F, Sarid, E, Silveira, DM, So, C, Tharp, TD, Thompson, RI, van der Werf, DP, Vendeiro, Z, Wurtele, JS, Zhmoginov, AI & Charman, AE 2017, 'Limit on the electric charge of antihydrogen', Hyperfine Interactions, vol. 238, no. 1, 9. https://doi.org/10.1007/s10751-016-1382-6

TY - JOUR

T1 - Limit on the electric charge of antihydrogen

AU - Capra, A.

AU - Amole, C.

AU - Ashkezari, M. D.

AU - Baquero-Ruiz, M.

AU - Bertsche, W.

AU - Butler, E.

AU - Cesar, C. L.

AU - Charlton, M.

AU - Eriksson, S.

AU - Fajans, J.

AU - Friesen, T.

AU - Fujiwara, M. C.

AU - Gill, D. R.

AU - Gutierrez, A.

AU - Hangst, J. S.

AU - Hardy, W. N.

AU - Hayden, M. E.

AU - Isaac, C. A.

AU - Jonsell, S.

AU - Kurchaninov, L.

AU - Little, A.

AU - K. McKenna, J. T.

AU - Menary, S.

AU - Napoli, S. C.

AU - Nolan, P.

AU - Olchanski, K.

AU - Olin, A.

AU - Povilus, A.

AU - Pusa, P.

AU - Robicheaux, F.

AU - Sarid, E.

AU - Silveira, D. M.

AU - So, C.

AU - Tharp, T. D.

AU - Thompson, R. I.

AU - van der Werf, D. P.

AU - Vendeiro, Z.

AU - Wurtele, J. S.

AU - Zhmoginov, A. I.

AU - Charman, A. E.

PY - 2017/11/1

Y1 - 2017/11/1

N2 - The ALPHA collaboration has successfully demonstrated the production and the confinement of cold antihydrogen, H̅. An analysis of trapping data allowed a stringent limit to be placed on the electric charge of the simplest antiatom. Charge neutrality of matter is known to a very high precision, hence a neutrality limit of H̅ provides a test of CPT invariance. The experimental technique is based on the measurement of the deflection of putatively charged H̅ in an electric field. The tendency for trapped H̅ atoms to be displaced by electrostatic fields is measured and compared to the results of a detailed simulation of H̅ dynamics in the trap. An extensive survey of the systematic errors was performed, and this work focuses on those due to the silicon vertex detector, which is the device used to determine the H̅ annihilation position. The limit obtained on the charge of the H̅ atom is Q = (−1.3 ± 1.8 ± 0.4) × 10−8, representing the first precision measurement with H̅ [1].

AB - The ALPHA collaboration has successfully demonstrated the production and the confinement of cold antihydrogen, H̅. An analysis of trapping data allowed a stringent limit to be placed on the electric charge of the simplest antiatom. Charge neutrality of matter is known to a very high precision, hence a neutrality limit of H̅ provides a test of CPT invariance. The experimental technique is based on the measurement of the deflection of putatively charged H̅ in an electric field. The tendency for trapped H̅ atoms to be displaced by electrostatic fields is measured and compared to the results of a detailed simulation of H̅ dynamics in the trap. An extensive survey of the systematic errors was performed, and this work focuses on those due to the silicon vertex detector, which is the device used to determine the H̅ annihilation position. The limit obtained on the charge of the H̅ atom is Q = (−1.3 ± 1.8 ± 0.4) × 10−8, representing the first precision measurement with H̅ [1].

KW - Antihydrogen

KW - Atom trapping

KW - CPT

KW - Electric charge

KW - Electric neutrality

KW - Fundamental symmetries

KW - Position sensitive detector

KW - Quantum anomaly

KW - Silicon detector

UR - http://www.scopus.com/inward/record.url?scp=85006459538&partnerID=8YFLogxK

U2 - 10.1007/s10751-016-1382-6

DO - 10.1007/s10751-016-1382-6

M3 - Article

AN - SCOPUS:85006459538

SN - 0304-3843

VL - 238

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1

M1 - 9

ER -

Limit on the electric charge of antihydrogen

Abstract

Keywords

ASJC Scopus subject areas

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