Nonperturbative relativistic calculation of the muonic hydrogen spectrum
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2011
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Carroll, J.
Thomas, A.
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Physical Review A: Atomic, Molecular and Optical Physics, 2011; 84(1):012506-1-012506-9
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J. D. Carroll, A. W. Thomas, J. Rafelski and G. A. Miller
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Abstract
We investigate the muonic hydrogen 2P3/2F=2 to 2S1/2F=1 transition through a precise, nonperturbative numerical solution of the Dirac equation including the finite-size Coulomb force and finite-size vacuum polarization. The results are compared with earlier perturbative calculations of (primarily) [ E. Borie Phys. Rev. A 71 032508 (2005) E. Borie and G. A. Rinker Rev. Mod. Phys. 54 67 (1982) E. Borie Z. Phys. A 275 347 (1975) and A. P. Martynenko Phys. Rev. A 71 022506 (2005) A. Martynenko Phys. At. Nucl. 71 125 (2008), and K. Pachucki Phys. Rev. A 53 2092 (1996)] and experimental results recently presented by Pohl et al. [ Nature (London) 466 213 (2010)], in which this very comparison is interpreted as requiring a modification of the proton charge radius from that obtained in electron scattering and electronic hydrogen analyses. We find no significant discrepancy between the perturbative and nonperturbative calculations, and we present our results as confirmation of the perturbative methods.
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©2011 American Physical Society