Background-free observation of cold antihydrogen with field-ionization analysis of its states -: art. no. 213401

被引：509

作者：

Gabrielse, G ^{[1
]}

Bowden, NS

Oxley, P

Speck, A

Storry, CH

Tan, JN

Wessels, M

Grzonka, D

Oelert, W

Schepers, G

Sefzick, T

Walz, J

Pittner, H

Hänsch, TW

Hessels, EA

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[2] Forschungszentrum Julich, IKP, D-52425 Julich, Germany

[3] CERN, CH-1211 Geneva 23, Switzerland

[4] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[5] Univ Munich, D-80799 Munich, Germany

[6] York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3, Canada

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.89.213401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A background-free observation of cold antihydrogen atoms is made using field ionization followed by antiproton storage, a detection method that provides the first experimental information about antihydrogen atomic states. More antihydrogen atoms can be field ionized in an hour than all the antimatter atoms that have been previously reported, and the production rate per incident high energy antiproton is higher than ever observed. The high rate and the high Rydberg states suggest that the antihydrogen is formed via three-body recombination.

引用

页数：4

共 22 条

[1] Production and detection of cold antihydrogen atoms [J].

Amoretti, M ;

Amsler, C ;

Bonomi, G ;

Bouchta, A ;

Bowe, P ;

Carraro, C ;

Cesar, CL ;

Charlton, M ;

Collier, MJT ;

Doser, M ;

Filippini, V ;

Fine, KS ;

Fontana, A ;

Fujiwara, MC ;

Funakoshi, R ;

Genova, P ;

Hangst, JS ;

Hayano, RS ;

Holzscheiter, MH ;

Jorgensen, LV ;

Lagomarsino, V ;

Landua, R ;

Lindelöf, D ;

Rizzini, EL ;

Macri, M ;

Madsen, N ;

Manuzio, G ;

Marchesotti, M ;

Montagna, P ;

Pruys, H ;

Regenfus, C ;

Riedler, P ;

Rochet, J ;

Rotondi, A ;

Rouleau, G ;

Testera, G ;

Variola, A ;

Watson, TL ;

van der Werf, DP .

NATURE, 2002, 419 (6906) :456-459

[2] Production of antihydrogen [J].

Baur, G ;

Boero, G ;

Brauksiepe, S ;

Buzzo, A ;

Eyrich, W ;

Geyer, R ;

Grzonka, D ;

Hauffe, J ;

Kilian, K ;

LoVetere, M ;

Macri, M ;

Moosburger, M ;

Nellen, R ;

Oelert, W ;

Passaggio, S ;

Pozzo, A ;

Rohrich, K ;

Sachs, K ;

Schepers, G ;

Sefzick, T ;

Simon, RS ;

Stratmann, R ;

Stinzing, F ;

Wolke, M .

PHYSICS LETTERS B, 1996, 368 (03) :251-258

[3] Observation of atomic antihydrogen [J].

Blanford, G ;

Christian, DC ;

Gollwitzer, K ;

Mandelkern, M ;

Munger, CT ;

Schultz, J ;

Zioulas, G .

PHYSICAL REVIEW LETTERS, 1998, 80 (14) :3037-3040

[4]

Bluhm R, 1998, PHYS REV D, V57, P3932, DOI 10.1103/PhysRevD.57.3932

[5] Field ionization of strongly magnetized Rydberg positronium: A new physical mechanism for positron accumulation [J].

Estrada, J ;

Roach, T ;

Tan, JN ;

Yesley, P ;

Gabrielse, G .

PHYSICAL REVIEW LETTERS, 2000, 84 (05) :859-862

[6] Formation of antihydrogen atoms in an ultra-cold positron-antiproton plasma [J].

Fedichev, PO .

PHYSICS LETTERS A, 1997, 226 (05) :289-292

[7]

Fei X., 1990, Trapping low energy antiprotons in an ion trap

[8] ANTIHYDROGEN PRODUCTION USING TRAPPED PLASMAS [J].

GABRIELSE, G ;

ROLSTON, SL ;

HAARSMA, L ;

KELLS, W .

PHYSICS LETTERS A, 1988, 129 (01) :38-42

[9] Stacking of cold antiprotons [J].

Gabrielse, G ;

Bowden, NS ;

Oxley, P ;

Speck, A ;

Storry, CH ;

Tan, JN ;

Wessels, M ;

Grzonka, D ;

Oelert, W ;

Schepers, G ;

Sefzick, T ;

Walz, J ;

Pittner, H ;

Hänsch, TW ;

Hessels, EA .

PHYSICS LETTERS B, 2002, 548 (3-4) :140-145

[10] COOLING AND SLOWING OF TRAPPED ANTIPROTONS BELOW 100 MEV [J].

GABRIELSE, G ;

FEI, X ;

OROZCO, LA ;

TJOELKER, RL ;

HAAS, J ;

KALINOWSKY, H ;

TRAINOR, TA ;

KELLS, W .

PHYSICAL REVIEW LETTERS, 1989, 63 (13) :1360-1363

← 1 2 3 →