QED is not endangered by the proton's size

被引：42

作者：

De Rujula, A. ^{[1
,2
,3
,4
]}

机构：

[1] CERN, Dept Phys, CH-1211 Geneva 23, Switzerland

[2] Univ Autonoma Madrid UAM CSIC, Inst Fis Teor, Madrid, Spain

[3] CIEMAT, E-28040 Madrid, Spain

[4] Boston Univ, Dept Phys, Boston, MA 02215 USA

来源：

PHYSICS LETTERS B | 2010年 / 693卷 / 05期

关键词：

Proton radius; Lyman shift; Muonic hydrogen; RYDBERG CONSTANT; HYDROGEN; FREQUENCY; DEUTERIUM; ATOMS;

D O I：

10.1016/j.physletb.2010.08.074

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Pohl et al. have reported a very precise measurement of the Lamb-shift in muonic hydrogen (Pohl et al., 2010) [1], from which they infer the radius characterizing the proton's charge distribution. The result is 5 standard deviations away from the one of the CODATA compilation of physical constants. This has been interpreted (Pohl et al., 2010) [1] as possibly requiring a 4.9 standard-deviation modification of the Rydberg constant, to a new value that would be precise to 3.3 parts in 10(13), as well as putative evidence for physics beyond the standard model (Flowers. 2010) [2]. I demonstrate that these options are unsubstantiated. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：555 / 558

页数：4

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