Present status of the fine-structure frequencies of the 23P helium level

被引：48

作者：

Giusfredi, G

Pastor, PC

De Natale, P

Mazzotti, D

de Mauro, C

Fallani, L

Hagel, G

Krachmalnicoff, V

Inguscio, M

机构：

[1] Ist Nazl Ott Applicata, I-50125 Florence, Italy

[2] European Lab Nonlinear Spect, I-50019 Sesto Fiorentino, Italy

[3] Univ Florence, Dipartimento Fis, I-50019 Sesto Fiorentino, Italy

来源：

CANADIAN JOURNAL OF PHYSICS | 2005年 / 83卷 / 04期

关键词：

D O I：

10.1139/P04-075

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new measurement of the fine-structure frequencies of the 2(3) P level in He-4 is presented. The result for the largest interval 2(3) P-0-2(3) P-1 is 29 616 952.7(1.0) kHz, and 2 291 167.7(11.0) kHz for the smallest one, 2(3) P-1-2(3) P-2. Taking into account this new result, an agreement among different experiments at the 1 kHz level is found. Implications of this situation for the determination of the fine-structure constant alpha are discussed.

引用

页码：301 / 310

页数：10

共 24 条

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CANCIO P, 1998, P 16 AT PHYS INT C, P42

[2] Precise measurement of the J=1 to J=2 fine structure interval in the 23P state of helium [J].