1982
DOI: 10.1103/physrevlett.49.993
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Higher Precision Measurement of the hfs Interval of Muonium and of the Muon Magnetic Moment

Abstract: New higher precision measurements of the hyperfine Zeeman transitions in the ground state of muonium have been performed with use of the high-stopping-density surface \i + beam at the Clinton P 0 Anderson Meson Physics Facility. The results are Ay = 4 463-302.88(16) kHz (0.036 ppm) and n^/np^ 3.183 3461(11) (0.36 ppm). The current theoretical value of Ay agrees well with experiment within the 0.77-ppm error of Ay t^eor , which is due principally to inaccuracy in evaluation of the nonrecoil radiative correction… Show more

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Cited by 168 publications
(139 citation statements)
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“…A major improvement of this experiment over the earlier work [9] is the use of a resonance line narrowing technique [10]. In the conventional approach, the signal, S, is obtained by counting positrons throughout the beamon time.…”
Section: (Received 21 August 1998)mentioning
confidence: 99%
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“…A major improvement of this experiment over the earlier work [9] is the use of a resonance line narrowing technique [10]. In the conventional approach, the signal, S, is obtained by counting positrons throughout the beamon time.…”
Section: (Received 21 August 1998)mentioning
confidence: 99%
“…To this end, we combine (9) and (10) with the results of the last precision experiment [9] to obtain Dn͑exp͒ 4 463 302 776͑51͒ Hz ͑11 ppb͒ ,…”
Section: Figmentioning
confidence: 99%
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“…Both experiment and theory have achieved very high accuracy. The experimental errors for HFS in muonium are now in the interval 16-51 Hz [1,2], and a new measurement with the goal to reduce the error to about 10 Hz or to a few parts in 10 9 is now planned at J-PARC [3,4]. Current theoretical uncertainty of HFS in muonium is about 70-100 Hz, see, e.g., reviews in [5][6][7].…”
Section: Introductionmentioning
confidence: 99%
“…The hyperfine splitting between the spin-0 and spin-1 levels of the muonium ground state has been measured to give a very precise result [15] ∆ν(exp) = 4463302.88(0.16) kHz (0.036ppm).…”
mentioning
confidence: 99%