Spatial Distribution of Cold Antihydrogen Formation | Zendy

N. Madsen | Zendy; Michele Amoretti | Zendy; C. Amsler | Zendy; G. Bonomi | Zendy; P. D. Bowe | Zendy; C. Carraro | Zendy; C. L. Cesar | Zendy; M. Charlton | Zendy; M. Doser | Zendy; A. Fontana | Zendy; M. Fujiwara | Zendy; R. Funakoshi | Zendy; P. Genova | Zendy; J. S. Hangst | Zendy; R. Hayano | Zendy; L. V. Jo̸rgensen | Zendy; A. Kellerbauer | Zendy; V. Lagomarsino | Zendy; R. Landua | Zendy; E. Lodi–Rizzini | Zendy; M. Macrı́ | Zendy; D. Mitchard | Zendy; P. Montagna | Zendy; H.S. Pruys | Zendy; C. Regenfus | Zendy; A. Rotondi | Zendy; G. Testera | Zendy; A. Variola | Zendy; L. Venturelli | Zendy; D. P. van der Werf | Zendy; Y. Yamazaki | Zendy; N. Zurlo | Zendy

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Spatial Distribution of Cold Antihydrogen Formation

Author(s) -

N. Madsen,

Michele Amoretti,

C. Amsler,

G. Bonomi,

P. D. Bowe,

C. Carraro,

C. L. Cesar,

M. Charlton,

M. Doser,

A. Fontana,

M. Fujiwara,

R. Funakoshi,

P. Genova,

J. S. Hangst,

R. Hayano,

L. V. Jo̸rgensen,

A. Kellerbauer,

V. Lagomarsino,

R. Landua,

E. Lodi–Rizzini,

M. Macrı́,

D. Mitchard,

P. Montagna,

H.S. Pruys,

C. Regenfus,

A. Rotondi,

G. Testera,

A. Variola,

L. Venturelli,

D. P. van der Werf,

Y. Yamazaki,

N. Zurlo

Publication year - 2005

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.94.033403

Subject(s) - antihydrogen , spatial distribution , nuclear physics , distribution (mathematics) , physics , antimatter , positron , geography , remote sensing , electron , mathematical analysis , mathematics

Antihydrogen is formed when antiprotons are mixed with cold positrons in a nested Penning trap. We present experimental evidence, obtained using our antihydrogen annihilation detector, that the spatial distribution of the emerging antihydrogen atoms is independent of the positron temperature and axially enhanced. This indicates that antihydrogen is formed before the antiprotons are in thermal equilibrium with the positron plasma. This result has important implications for the trapping and spectroscopy of antihydrogen.

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