Hyperfine structure of the metastable (p)over-bar-He+ atomcule revealed by a laser-induced (n,l)=(37,35)->(38,34) transition

被引：51

作者：

Widmann, E

Eades, J

Yamazaki, T

Torii, HA

Hayano, RS

Hori, M

Ishikawa, T

Kumakura, M

Morita, N

Sugai, I

Hartmann, FJ

vonEgidy, T

Ketzer, B

Maierl, C

Pohl, R

Horvath, D

机构：

[1] CERN, CH-1211 GENEVA 23, SWITZERLAND

[2] UNIV TOKYO, DEPT PHYS, BUNKYO KU, TOKYO 113, JAPAN

[3] INST MOL SCI, OKAZAKI, AICHI 444, JAPAN

[4] UNIV TOKYO, INST NUCL STUDY, TANASHI, TOKYO 188, JAPAN

[5] TECH UNIV MUNCHEN WEIHENSTEPHAN, DEPT PHYS, D-85747 GARCHING, GERMANY

[6] KFKI, RES INST PARTICLE & NUCL PHYS, H-1525 BUDAPEST, HUNGARY

来源：

PHYSICS LETTERS B | 1997年 / 404卷 / 1-2期

基金：

日本学术振兴会; 匈牙利科学研究基金会;

关键词：

antiprotonic helium; atomcule; hyperfine splitting; exotic atom; laser spectroscopy;

D O I：

10.1016/S0370-2693(97)00538-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A precise scan of the previously discovered laser-induced transition (n, l) = (37,35) --> (38,34) in pHe(+) revealed a doubler structure with a separation of Delta nu(HF) = 1.70 +/- 0.05 GHz. This new type of ''hyperfine'' splitting is ascribed to the interaction of the antiproton orbital angular momentum and the electron spin. (C) 1997 Elsevier Science B.V.

引用

页码：15 / 19

页数：5

共 27 条

[1] Spin effects in antiprotonic helium spectroscopy [J].

Bakalov, D ;

Puzynin, IV ;

Puzynina, TP ;

Vinitsky, SI .

PHYSICS LETTERS A, 1996, 211 (04) :223-227

[2] Fine and hyperfine structure of antiprotonic helium [J].

Bakalov, D ;

Puzynin, IV ;

Puzynina, TP ;

Vinitsky, SI .

HYPERFINE INTERACTIONS, 1996, 102 :487-492

[3]

BAKALOV D, 1996, INT WORKSH MET EX ST

[4] ELECTROMAGNETIC STRUCTURE OF LIGHTER ANTIPROTONIC ATOMS [J].

BOHNERT, G ;

DECKER, R ;

HORNBERG, A ;

PILKUHN, H ;

SCHLAILE, HG .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1986, 2 (01) :23-36

[5] LASER STUDIES OF THE DECAY CHAIN OF METASTABLE ANTIPROTONIC HELIUM-ATOMS [J].

HAYANO, RS ;

MAAS, FE ;

TORII, HA ;

MORITA, N ;

KUMAKURA, M ;

YAMAZAKI, T ;

MASUDA, H ;

SUGAI, I ;

HARTMANN, FJ ;

DANIEL, H ;

VONEGIDY, T ;

KETZER, B ;

MULLER, W ;

SCHMID, W ;

HORVATH, D ;

EADES, J ;

WIDMANN, E .

PHYSICAL REVIEW LETTERS, 1994, 73 (11) :1485-1488

[6] Observation of double-resonant laser-induced transitions in the v=n-l-1=2 metastable cascade of antiprotonic He-4 atoms [J].

Hayano, RS ;

Ishikawa, T ;

Tamura, H ;

Torii, HA ;

Hori, M ;

Maas, FE ;

Morita, N ;

Kumakura, M ;

Sugai, I ;

Hartmann, FJ ;

Daniel, H ;

vonEgidy, T ;

Ketzer, B ;

Pohl, R ;

Horvath, D ;

Eades, J ;

Widmann, E ;

Yamazaki, T .

PHYSICAL REVIEW A, 1997, 55 (01) :R1-R4

[7] LASER STUDIES OF THE DECAY CHAIN OF METASTABLE ANTIPROTONIC HELIUM-ATOMS (VOL 73, PG 1485, 1994) [J].

HAYANO, RS ;

MAAS, FE ;

TORRI, HA ;

MORITA, N ;

KUMAKURA, M ;

YAMAZAKI, T ;

MASUDA, H ;

SUGAI, I ;

HARTMANN, FJ ;

DANIEL, H ;

VONEGIDY, T ;

KETZER, B ;

MULLER, W ;

SCHMID, W ;

HORVATH, D ;

EADES, J ;

WIDMANN, E .

PHYSICAL REVIEW LETTERS, 1994, 73 (23) :3181-3181

[8] ELECTRIC CHARGES OF POSITRONS AND ANTIPROTONS [J].

HUGHES, RJ ;

DEUTCH, BI .

PHYSICAL REVIEW LETTERS, 1992, 69 (04) :578-581

[9] DISCOVERY OF ANTIPROTON TRAPPING BY LONG-LIVED METASTABLE STATES IN LIQUID-HELIUM [J].

IWASAKI, M ;

NAKAMURA, SN ;

SHIGAKI, K ;

SHIMIZU, Y ;

TAMURA, H ;

ISHIKAWA, T ;

HAYANO, RS ;

TAKADA, E ;

WIDMANN, E ;

OUTA, H ;

AOKI, M ;

KITCHING, P ;

YAMAZAKI, T .

PHYSICAL REVIEW LETTERS, 1991, 67 (10) :1246-1249

[10]

Kartavtsev OI, 1996, HYPERFINE INTERACT, V103, P369

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