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Improved measurement of the positive muon anomalous magnetic moment

  • H. N. Brown*
  • , G. Bunce
  • , R. M. Carey
  • , P. Cushman
  • , G. T. Danby
  • , P. T. Debevec
  • , H. Deng
  • , W. Deninger
  • , S. K. Dhawan
  • , V. P. Druzhinin
  • , L. Duong
  • , W. Earle
  • , E. Efstathiadis
  • , G. V. Fedotovich
  • , F. J.M. Farley
  • , S. Giron
  • , F. Gray
  • , M. Grosse-Perdekamp
  • , A. Grossmann
  • , U. Haeberlen
  • M. F. Hare, E. S. Hazen, D. W. Hertzog, V. W. Hughes, M. Iwasaki, K. Jungmann, D. Kawall, M. Kawamura, B. I. Khazin, J. Kindem, F. Krienen, I. Kronkvist, R. Larsen, Y. Y. Lee, I. Logashenko, R. McNabb, W. Meng, J. Mi, J. P. Miller, W. M. Morse, C. J.G. Onderwater, Y. Orlov, C. Özben, C. Polly, C. Pai, J. M. Paley, J. Pretz, R. Prigl, G. Zu Putlitz, S. I. Redin, O. Rind, B. L. Roberts, N. Ryskulov, S. Sedykh, Y. K. Semertzidis, Yu M. Shatunov, E. Solodov, M. Sossong, A. Steinmetz, L. R. Sulak, C. Timmermans, A. Trofimov, D. Urner, P. Von Walter, D. Warburton, D. Winn, A. Yamamoto, D. Zimmerman
*Corresponding author for this work
  • Brookhaven National Laboratory
  • Boston University
  • University of Minnesota Twin Cities
  • University of Illinois at Urbana-Champaign
  • Yale University
  • RAS - Budker Institute of Nuclear Physics
  • Physikalisches Institut
  • Heidelberg University 
  • Max Planck Institute for Medical Research
  • Tokyo Inst. Technol., 2-12-1 O.
  • Newman Laboratory
  • Cornell University
  • Fairfield University
  • High Energy Accelerator Research Organization, Tsukuba

Research output: Contribution to journal › Article › peer-review

109 Citations (Scopus)

Abstract

A new measurement of the positive muon's anomalous magnetic moment has been made at the Brookhaven Alternating Gradient Synchrotron using the direct injection of polarized muons into the superferric storage ring. The angular frequency difference ωa between the angular spin precession frequency ωs and the angular orbital frequency ωc is measured as well as the free proton NMR frequency ωp. These determine R =ωa/ωp=3.707 201(19)×10-3. With μμ/μp=3.183 345 39(10) this gives aμ+=11 659 191(59)×10-10 (±5 ppm), in good agreement with the previous CERN and BNL measurements for μ+ and μ-, and with the standard model prediction.

Original languageEnglish
Article number091101
Pages (from-to)1-4
Number of pages4
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume62
Issue number9
DOIs
Publication statusPublished - 1 Nov 2000
Externally publishedYes

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