Improved limit on the muon electric dipole moment

Journal Article · Tue Sep 01 04:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.052008· OSTI ID:21322557

Bennett, G W; Brown, H N; Bunce, G; Danby, G T; Larsen, R; Lee, Y Y; Meng, W; Mi, J; Morse, W M; Nikas, D; Prigl, R; Semertzidis, Y K; Warburton, D ^[1]; Bousquet, B; Cushman, P; Duong, L; Giron, S; Kindem, J; Kronkvist, I; Qian, T ^[2]

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1. Brookhaven National Laboratory, Upton, New York 11973 (United States)
2. Department of Physics, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

Three independent searches for an electric dipole moment (EDM) of the positive and negative muons have been performed, using spin precession data from the muon g-2 storage ring at Brookhaven National Laboratory. Details on the experimental apparatus and the three analyses are presented. Since the individual results on the positive and negative muons, as well as the combined result, d{sub {mu}}=(0.0{+-}0.9)x10{sup -19}e cm, are all consistent with zero, we set a new muon EDM limit, |d{sub {mu}}|<1.8x10{sup -19}e cm (95% C.L.). This represents a factor of 5 improvement over the previous best limit on the muon EDM.

• OSTI ID: 21322557
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 80; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BNL
ELECTRIC DIPOLE MOMENTS
MUONS
PRECESSION
SPIN
STORAGE RINGS