New measurement of the electron magnetic moment using a one-electron quantum cyclotron

被引：272

作者：

Odom, B. ^{[1
]}

Hanneke, D. ^{[1
]}

D'Urso, B. ^{[1
]}

Gabrielse, G. ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.97.030801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new measurement resolves cyclotron and spin levels for a single-electron quantum cyclotron to obtain an electron magnetic moment, given by g/2=1.001 159 652 180 85 (76) [0.76 ppt]. The uncertainty is nearly 6 times lower than in the past, and g is shifted downward by 1.7 standard deviations. The new g, with a quantum electrodynamics (QED) calculation, determines the fine structure constant with a 0.7 ppb uncertainty-10 times smaller than for atom-recoil determinations. Remarkably, this 100 mK measurement probes for internal electron structure at 130 GeV.

引用

页数：4

共 22 条

[1] Final report of the E821 muon anomalous magnetic moment measurement at BNL -: art. no. 072003 [J].

Bennett, GW ;

Bousquet, B ;

Brown, HN ;

Bunce, G ;

Carey, RM ;

Cushman, P ;

Danby, GT ;

Debevec, PT ;

Deile, M ;

Deng, H ;

Deninger, W ;

Dhawan, SK ;

Druzhinin, VP ;

Duong, L ;

Efstathiadis, E ;

Farley, FJM ;

Fedotovich, GV ;

Giron, S ;

Gray, FE ;

Grigoriev, D ;

Grosse-Perdekamp, M ;

Grossmann, A ;

Hare, MF ;

Hertzog, DW ;

Huang, X ;

Hughes, VW ;

Iwasaki, M ;

Jungmann, K ;

Kawall, D ;

Kawamura, M ;

Khazin, BI ;

Kindem, J ;

Krienen, F ;

Kronkvist, I ;

Lam, A ;

Larsen, R ;

Lee, YY ;

Logashenko, I ;

McNabb, R ;

Meng, W ;

Mi, J ;

Miller, JP ;

Mizumachi, Y ;

Morse, WM ;

Nikas, D ;

Onderwater, CJG ;

Orlov, Y ;

Özben, CS ;

Paley, JM ;

Peng, Q .

PHYSICAL REVIEW D, 2006, 73 (07)

[2] APPARATUS-DEPENDENT CONTRIBUTIONS TO G-2 [J].

BOULWARE, DG ;

BROWN, LS ;

LEE, T .

PHYSICAL REVIEW D, 1985, 32 (03) :729-735

[3] ANOMALOUS MAGNETIC-MOMENT AND LIMITS ON FERMION SUBSTRUCTURE [J].

BRODSKY, SJ ;

DRELL, SD .

PHYSICAL REVIEW D, 1980, 22 (09) :2236-2243

[4] GEONIUM LINESHAPE [J].

BROWN, LS .

ANNALS OF PHYSICS, 1985, 159 (01) :62-98

[5] PRECISION SPECTROSCOPY OF A CHARGED-PARTICLE IN AN IMPERFECT PENNING TRAP [J].

BROWN, LS ;

GABRIELSE, G .

PHYSICAL REVIEW A, 1982, 25 (04) :2423-2425

[6] GEONIUM THEORY - PHYSICS OF A SINGLE ELECTRON OR ION IN A PENNING TRAP [J].

BROWN, LS ;

GABRIELSE, G .

REVIEWS OF MODERN PHYSICS, 1986, 58 (01) :233-311

[7] CYCLOTRON MOTION IN A MICROWAVE CAVITY - POSSIBLE SHIFTS OF THE MEASURED ELECTRON G-FACTOR [J].

BROWN, LS ;

GABRIELSE, G ;

HELMERSON, K ;

TAN, J .

PHYSICAL REVIEW LETTERS, 1985, 55 (01) :44-47

[8] Determination of the fine structure constant based on Bloch oscillations of ultracold atoms in a vertical optical lattice -: art. no. 033001 [J].

Cladé, P ;

de Mirandes, E ;

Cadoret, M ;

Guellati-Khélifa, S ;

Schwob, C ;

Nez, F ;

Julien, L ;

Biraben, F .

PHYSICAL REVIEW LETTERS, 2006, 96 (03)

[9] Single-particle self-excited oscillator [J].

D'Urso, B ;

Van Handel, R ;

Odom, B ;

Hanneke, D ;

Gabrielse, G .

PHYSICAL REVIEW LETTERS, 2005, 94 (11)

[10]

DYSON F, COMMUNICATION

← 1 2 3 →