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Magnetic moment of the negative muon

Journal Article · · Physical Review A; (United States)
 [1]
  1. Department of Physics, Yale University, New Haven, Connecticut 06511 (United States)
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The most accurate value of the negative-muon magnetic moment, [mu][sub [mu]][sup [minus]]=3.183 345(10)[mu][sub [ital p]], is obtained by combining the negative-muon mass from x-ray transitions in muonic atoms and the reanalyzed negative-muon [ital g] factor with the proton magnetic moment in Bohr magnetons. The fractional uncertainty of 3.1[times]10[sup [minus]6] is 15 times more accurate than any previous direct measurement. The obtained ratio of the magnetic moments of the positive muon and the negative muon, [mu][sub [mu]][sup +]/[mu][sub [mu]][sup [minus]]=1.000 000 2(31), provides a test of [ital CPT] invariance at the level of 3 ppm. The negative-muon [ital g] factor [ital g][sub [mu]][sup [minus]] and the magnetic moment anomaly [ital a][sub [mu]][sup [minus]] derived for a test of [ital CPT] theorem are obtained from an approach now made possible using the new value of the negative-muon magnetic moment. To substantially improve the verification of the [ital CPT] theorem for the muon [ital g] factor, a much more precise value for [mu][sub [mu]][sup [minus]]/[mu][sub [ital p]] is needed to determine the anomalous [ital g] factor [ital a][sub [mu]][sup [minus]] for the new Brookhaven National Laboratory muon g-2 experiment.

OSTI ID:
5227183
Journal Information:
Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 49:2; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English

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Related Subjects

662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662430* -- Properties of Leptons-- (1992-)
664500 -- Special Atoms & Molecules-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
CPT THEOREM
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
FERMIONS
INVARIANCE PRINCIPLES
LANDE FACTOR
LEPTONS
MAGNETIC MOMENTS
MASS
MUONIC ATOMS
MUONS
MUONS MINUS