News from the Muon (g-2) Experiment at BNL

A Groβmann; A Lam; A Steinmetz; A Trofimov; A Yamamoto; Akhmetshin; B Bousquet; B.I Khazin; B.L Roberts; Bailey; Bennett; Brown; C Onderwater; C Polly; C.S Özben; D Grigoriev; D Kawall; D Nikas; D Urner; D Warburton; D.W Hertzog; Danby; Davier; E Efstathiadis; E Sichtermann; E Solodov; F Gray; F Krienen; F.J.M Farley; Fei; G Bunce; G zu Putlitz; G.T Danby; G.V Fedotovich; G.W Bennett; H Deng; H.N Brown; I Kronkvist; I Logashenko; J Kindem; J Mi; J Paley; J Pretz; J.P Miller; K Jungmann; L Duong; L.R Sulak; Liu; M Deile; M Deile; M Groβe-Perdekamp; M Iwasaki; M Sossong; M.F Hare; N.M Ryskulov; O Rind; P Cushman; P Shagin; P von Walter; P.T Debevec; Prigl; Q Peng; R Larsen; R McNabb; R Prigl; R.M Carey; S Giron; S.I Redin; S.K Dhawan; Sedykh; T Qian; V.P Druzhinin; V.W Hughes; Van Dyck; W Deninger; W Meng; W.M Morse; X Huang; Y Orlov; Y.K Semertzidis; Y.Y Lee; Yamamoto; Yu.M Shatunov

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News from the Muon (g-2) Experiment at BNL

Abstract

The magnetic moment anomaly a_mu = (g_mu - 2) / 2 of the positive muon has been measured at the Brookhaven Alternating Gradient Synchrotron with an uncertainty of 0.7 ppm. The new result, based on data taken in 2000, agrees well with previous measurements. Standard Model evaluations currently differ from the experimental result by 1.6 to 3.0 standard deviations.Comment: Talk presented at RADCOR - Loops and Legs 2002, Kloster Banz, Germany, September 8-13 2002, to be published in Nuclear Physics B (Proc. Suppl.); 5 pages, 3 figure