The radius of the proton

Size does matter

Jonathan D. Carroll, Anthony W. Thomas, Johann Rafelski, Gerald A. Miller

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The measurement by Pohl et al. [1] of the 2S1/2F=1 to 2P3/2F=2 transition in muonic hydrogen and the subsequent analysis has led to a conclusion that the rms charge radius of the proton differs from the accepted (CODATA [2]) value by approximately 4%, leading to a 4.9σ discrepancy. We investigate the muonic hydrogen spectrum relevant to this transition using bound-state QED with Dirac wave-functions and comment on the extent to which the perturbation-theory analysis which leads to the above conclusion can be confirmed.

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Pages25-31
Number of pages7
Volume1354
DOIs
StatePublished - 2011
EventT(r)opical QCD 2010 - Cairns, QLD, Australia
Duration: Sep 26 2010Oct 1 2010

Other

OtherT(r)opical QCD 2010
CountryAustralia
CityCairns, QLD
Period9/26/1010/1/10

Fingerprint

radii
protons
hydrogen
perturbation theory
wave functions

Keywords

  • lamb shift
  • proton radius
  • QED

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Carroll, J. D., Thomas, A. W., Rafelski, J., & Miller, G. A. (2011). The radius of the proton: Size does matter. In AIP Conference Proceedings (Vol. 1354, pp. 25-31) https://doi.org/10.1063/1.3587581

The radius of the proton : Size does matter. / Carroll, Jonathan D.; Thomas, Anthony W.; Rafelski, Johann; Miller, Gerald A.

AIP Conference Proceedings. Vol. 1354 2011. p. 25-31.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Carroll, JD, Thomas, AW, Rafelski, J & Miller, GA 2011, The radius of the proton: Size does matter. in AIP Conference Proceedings. vol. 1354, pp. 25-31, T(r)opical QCD 2010, Cairns, QLD, Australia, 9/26/10. https://doi.org/10.1063/1.3587581
Carroll JD, Thomas AW, Rafelski J, Miller GA. The radius of the proton: Size does matter. In AIP Conference Proceedings. Vol. 1354. 2011. p. 25-31 https://doi.org/10.1063/1.3587581
Carroll, Jonathan D. ; Thomas, Anthony W. ; Rafelski, Johann ; Miller, Gerald A. / The radius of the proton : Size does matter. AIP Conference Proceedings. Vol. 1354 2011. pp. 25-31
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