Antihydrogen formation dynamics in a multipolar neutral anti-atom trap

被引：36

作者：

Andresen, G. B. ^{[2
]}

Bertsche, W. ^{[1
]}

Bowe, P. D. ^{[2
]}

Bray, C. ^{[3
]}

Butler, E. ^{[1
]}

Cesar, C. L. ^{[4
]}

Chapman, S. ^{[3
]}

Charlton, M. ^{[1
]}

Fajans, J. ^{[3
]}

Fujiwara, M. C. ^{[5
]}

Gill, D. R. ^{[5
]}

Hangst, J. S. ^{[2
]}

Hardy, W. N. ^{[6
]}

Hayano, R. S. ^{[7
]}

Hayden, M. E. ^{[8
]}

Humphries, A. J. ^{[1
]}

Hydomako, R. ^{[9
]}

Jorgensen, L. V. ^{[1
]}

Kerrigan, S. J. ^{[1
]}

Kurchaninov, L. ^{[5
]}

Lambo, R. ^{[4
]}

Madsen, N. ^{[1
]}

Nolan, P. ^{[10
]}

Olchanski, K. ^{[5
]}

Olin, A. ^{[5
]}

Povilus, A. ^{[3
]}

Pusa, P. ^{[10
]}

Robicheaux, F. ^{[11
]}

Sarid, E. ^{[12
]}

El Nasr, S. Seif ^{[6
]}

Silveira, D. M. ^{[7
,13
]}

Storey, J. W. ^{[5
]}

Thompson, R. I. ^{[9
]}

van der Werf, D. P. ^{[1
]}

Wurtele, J. S. ^{[3
]}

Yamazaki, Y. ^{[13
]}

机构：

[1] Univ Coll Swansea, Dept Phys, Swansea SA2 8PP, W Glam, Wales

[2] Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C, Denmark

[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[4] Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, Brazil

[5] TRIUMF, Vancouver, BC V6T 2A3, Canada

[6] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[7] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[8] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada

[9] Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada

[10] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England

[11] Auburn Univ, Dept Phys, Auburn, AL 36849 USA

[12] Nucl Res Ctr Negev, Dept Phys, IL-84190 Beer Sheva, Israel

[13] RIKEN, Atom Phys Lab, Wako, Saitama 3510198, Japan

来源：

PHYSICS LETTERS B | 2010年 / 685卷 / 2-3期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会; 英国工程与自然科学研究理事会;

关键词：

Antihydrogen; CPT; Non-neutral plasma; Particle transport; MAGNETIC TRAP; PLASMA; CONFINEMENT;

D O I：

10.1016/j.physletb.2010.01.066

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Antihydrogen production in a neutral atom trap formed by an octupole-based magnetic field minimum is demonstrated using field-ionization of weakly bound anti-atoms. Using our unique annihilation imaging detector, we correlate antihydrogen detection by imaging and by field-ionization for the first time. We further establish how field-ionization causes radial redistribution of the antiprotons during antihydrogen formation and use this effect for the first simultaneous measurements of strongly and weakly bound antihydrogen atoms. Distinguishing between these provides critical information needed in the process of optimizing for trappable antihydrogen. These observations are of crucial importance to the ultimate goal of performing CPT tests involving antihydrogen, which likely depends upon trapping the anti-atom. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：141 / 145

页数：5

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