New Measurement of the anomalous magnetic moment of the positive muon
The muon anomalous magnetic moment has been measured in a new experiment at Brookhaven. Polarized muons were stored in a superferric ring, and the angular frequency difference, ωa, between the spin precession and orbital frequencies was determined by measuring the time distribution of high-energy de...
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| Main Authors: | , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
22 February 1999
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| In: |
Physical review letters
Year: 1999, Volume: 82, Issue: 8, Pages: 1632-1635 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.82.1632 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevLett.82.1632 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.82.1632 
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| Author Notes: | R.M. Carey, W. Earle, E. Efstathiadis, M.F. Hare, E.S. Hazen, B.J. Hughes, F. Krienen, J.P. Miller, V. Monich, J. Ouyang, O. Rind, B.L. Roberts, L.R. Sulak, A. Trofimov, G. Varner, W.A. Worstell, E. Benedict, I. Logashenko, J. Benante, H.N. Brown, G. Bunce, J. Cullen, G.T. Danby, J. Geller, H. Hseuh, J.W. Jackson, L. Jia, S. Kochis, R. Larsen, Y.Y. Lee, M. Mapes, W. Meng, W.M. Morse, C. Pai, C. Pearson, I. Polk, R. Prigl, S. Rankowitz, J. Sandberg, Y.K. Semertzidis, R. Shutt, L. Snydstrup, A. Soukas, A. Stillman, T. Tallerico, M. Tanaka, F. Toldo, D. von Lintig, D. Warburton, K. Woodle, A. Chertovskikh, V.P. Druzhinin, G.V. Fedotovich, D.N. Grigorev, V.B. Golubev, B.I. Khazin, A. Maksimov, Yu. Merzliakov, N. Ryskulov, S. Serednyakov, Yu.M. Shatunov, E. Solodov, Y. Orlov, D. Winn, A. Grossmann, J. Gerhaeuser, K. Jungmann, P. von Walter, G. zu Putlitz, B. Bunker, W. Deninger, P.T. Debevec, D.W. Hertzog, T.D. Jones, C. Polly, S. Sedykh, D. Urner, U. Haeberlen, K. Endo, H. Hirabayashi, S. Kurokawa, A. Yamamoto, M.A. Green, P. Cushman, J. Kindem, L. Duong, S. Giron, R. McNabb, D. Miller, C. Timmermans, D. Zimmerman, Y. Mizumachi, M. Iwasaki, H.E. Ahn, H. Deng, S.K. Dhawan, A. Disco, F.J.M. Farley, X. Fei, M. Grosse-Perdekamp, V.W. Hughes, D. Kawall, S.I. Redin and A. Steinmetz |
| Summary: | The muon anomalous magnetic moment has been measured in a new experiment at Brookhaven. Polarized muons were stored in a superferric ring, and the angular frequency difference, ωa, between the spin precession and orbital frequencies was determined by measuring the time distribution of high-energy decay positrons. The ratio R of ωa to the Larmor precession frequency of free protons, ωp, in the storage-ring magnetic field was measured. We find R=3.707220(48)×10−3. With μμ/μp=3.18334547(47) this gives aμ+=1165925(15)×10−9 ( ±13ppm), in good agreement with the previous CERN measurements for μ+ and μ− and of approximately the same precision. |
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| Item Description: | Gesehen am 21.02.2018 |
| Physical Description: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.82.1632 |