Measurement of the 2P3/2−S1/2 energy difference in the (μ−4He)+ muonic ion by means of a tunable infrared dye-laser |
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| Authors: | A. Bertin G. Carboni J. Duclos U. Gastaldi G. Gorini G. Neri J. Picard O. Pitzurra A. Placci E. Polacco G. Torelli A. Vitale E. Zavattini |
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| Affiliation: | Fysisch Laboratorium, Rijksuniversiteit, Utrecht, The Netherlands |
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| Abstract: | Results of an experiment to measure the 2P3/2?2S1/2 energy difference δ1 in the muonic (μ?4H e)+ ion are presented; we found δ1exp = 1.5274 ± 0.0009 eV. Comparison with QED predictions shows that there is agreement between theory and experiment within 0.0087 eV; this limitation is mainly due to the uncertainty with which the r.m.s. charge radius of the 4He nucleus is known. |
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