The ingredients of cold antihydrogen: Simultaneous confinement of antiprotons and positrons at 4 K

被引：55

作者：

Gabrielse, G ^{[1
]}

Hall, DS

Roach, T

Yesley, P

Khabbaz, A

Estrada, J

Heimann, C

Kalinowsky, H

机构：

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

[2] Univ Bonn, Inst Strahlen & Kernphys, D-53115 Bonn, Germany

来源：

PHYSICS LETTERS B | 1999年 / 455卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(99)00453-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Low energy antiprotons and cold positrons are stored together and observed to interact for the first time. The particles and the nested Penning trap that confines them are cooled to 4.2 K, within a vacuum better than 5 x 10(-17) Torr. The simultaneous confinement clearly demonstrates the potential of a nested Penning trap for the production of cold antihydrogen. Contaminant ions play a deleterious role, and we observe a surprising coupling between the positron and antiproton accumulation mechanisms. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：311 / 315

页数：5

共 19 条

[1] 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

[2] 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

[3]

*CERN SPSLC, 1997, SPSLCP306 CERN

[4]

*CERN SPSLC, 1996, SPSLCP302 CERN

[5] Two-photon spectroscopy of trapped atomic hydrogen [J].

Cesar, CL ;

Fried, DG ;

Killian, TC ;

Polcyn, AD ;

Sandberg, JC ;

Yu, IA ;

Greytak, TJ ;

Kleppner, D ;

Doyle, JM .

PHYSICAL REVIEW LETTERS, 1996, 77 (02) :255-258

[6] HIGH-VOLTAGE SWITCHING FOR IN-FLIGHT CAPTURE OF KEV ANTIPROTONS IN A PENNING TRAP [J].

FEI, X ;

DAVISSON, R ;

GABRIELSE, G .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1987, 58 (11) :2197-2199

[7] 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

[8] THOUSANDFOLD IMPROVEMENT IN THE MEASURED ANTIPROTON MASS [J].

GABRIELSE, G ;

FEI, X ;

OROZCO, LA ;

TJOELKER, RL ;

HAAS, J ;

KALINOWSKY, H ;

TRAINOR, TA ;

KELLS, W .

PHYSICAL REVIEW LETTERS, 1990, 65 (11) :1317-1320

[9]

Gabrielse G., 1987, Fundamental Symmetries. Proceedings of the First Course of the International School of Physics with Low-Energy Antiprotons, Fundamental Low Energy, P59

[10] BARKAS EFFECT OBSERVED WITH ANTIPROTONS AND PROTONS [J].

GABRIELSE, G ;

FEI, X ;

OROZCO, LA ;

ROLSTON, SL ;

TJOELKER, RL ;

TRAINOR, TA ;

HAAS, J ;

KALINOWSKY, H ;

KELLS, W .

PHYSICAL REVIEW A, 1989, 40 (01) :481-484

← 1 2 →