Measurement of the Frequency of the 23S-23P Transition of 4He

被引：78

作者：

Zheng, X. ^{[1
,2
]}

Sun, Y. R. ^{[1
,2
]}

Chen, J. -J. ^{[1
,2
]}

Jiang, W.

Pachucki, K. ^{[3
]}

Hu, S. -M. ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, iChem Ctr, Hefei Natl Lab Phys Sci & Microscale, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, CAS Ctr Excellence & Synerget, Innovat Ctr Quantum Informat & Quantum Phys, Hefei 230026, Anhui, Peoples R China

[3] Univ Warsaw, Fac Phys, Pasteura 5, PL-02093 Warsaw, Poland

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 119卷 / 26期

关键词：

RYDBERG CONSTANT; ATOMIC-HYDROGEN; LAMB SHIFT; HELIUM; PROTON; LASER; RADIUS; SPECTROSCOPY; DEUTERIUM; SIZE;

D O I：

10.1103/PhysRevLett.119.263002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The 2(3)S-2(3)P transition of He-4 was measured by comb-linked laser spectroscopy using a transversecooled atomic beam. The centroid frequency was determined to be 276 736 495 600.0(1.4) kHz, with a fractional uncertainty of 5.1 x 10(-12). This value is not only more accurate but also differs by as much as -49.5 kHz (20 sigma) from the previous result given by [Cancio Pastor et al., Phys. Rev. Lett. 92, 023001 (2004); 97, 139903(E) (2006); 108, 143001 (2012)]. In combination with ongoing theoretical calculations, this work may allow the most accurate determination of the nuclear charge radius of helium.

引用

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