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Preprint
Report number arXiv:2402.15410 ; FERMILAB-PUB-24-0084-AD-CSAID-PPD
Title Detailed Report on the Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm
Author(s)

Aguillard, D.P. (Michigan U.) ; Albahri, T. (U. Liverpool (main)) ; Allspach, D. (Fermilab) ; Anisenkov, A. (Novosibirsk State U. ; Novosibirsk, IYF) ; Badgley, K. (Fermilab) ; Baeßler, S. (Oak Ridge ; Virginia U.) ; Bailey, I. (Cockcroft Inst. Accel. Sci. Tech. ; Lancaster U. ; CERN) ; Bailey, L. (University Coll. London) ; Baranov, V.A. (Dubna, JINR) ; Barlas-Yucel, E. (Illinois U., Urbana) ; Barrett, T. (Cornell U.) ; Barzi, E. (Fermilab) ; Bedeschi, F. (INFN, Pisa) ; Berz, M. (Michigan State U.) ; Bhattacharya, M. (Fermilab) ; Binney, H.P. (Pennsylvania U.) ; Bloom, P. (North Carolina Central U.) ; Bono, J. (Fermilab) ; Bottalico, E. (INFN, Pisa ; U. Liverpool (main)) ; Bowcock, T. (U. Liverpool (main)) ; Braun, S. (Pennsylvania U.) ; Bressler, M. (Massachusetts U., Amherst) ; Cantatore, G. (Trieste U. ; INFN, Trieste) ; Carey, R.M. (Boston U.) ; Casey, B.C.K. (Fermilab) ; Cauz, D. (INFN, Udine ; Udine U.) ; Chakraborty, R. (Kentucky U.) ; Chapelain, A. (Cornell U.) ; Chappa, S. (Fermilab) ; Charity, S. (U. Liverpool (main)) ; Chen, C. (Shanghai Jiao Tong U. ; Shanghai Jiaotong U.) ; Cheng, M. (Illinois U., Urbana) ; Chislett, R. (University Coll. London) ; Chu, Z. (Shanghai Jiaotong U. ; SKLPPC, Shanghai) ; Chupp, T.E. (Michigan U.) ; Claessens, C. (Pennsylvania U.) ; Convery, M.E. (Fermilab) ; Corrodi, S. (Argonne) ; Cotrozzi, L. (Pisa U. ; INFN, Pisa ; U. Liverpool (main)) ; Crnkovic, J.D. (Fermilab) ; Dabagov, S. (Moscow Phys. Eng. Inst. ; Frascati) ; Debevec, P.T. (Illinois U., Urbana) ; Di Falco, S. (INFN, Pisa) ; Di Sciascio, G. (INFN, Rome2 ; U. Rome 2, Tor Vergata (main)) ; Donati, S. (Pisa U. ; INFN, Pisa) ; Drendel, B. (Fermilab) ; Driutti, A. (Pisa U. ; INFN, Pisa) ; Duginov, V.N. (Dubna, JINR) ; Eads, M. (Northern Illinois U. ; Fermilab) ; Edmonds, A. (Boston U. ; City Coll., N.Y.) ; Esquivel, J. (Fermilab) ; Farooq, M. (Michigan U.) ; Fatemi, R. (Kentucky U.) ; Ferrari, C. (CNR, INO, Pisa ; INFN, Pisa) ; Fertl, M. (U. Mainz, PRISMA) ; Fienberg, A.T. (Pennsylvania U.) ; Fioretti, A. (CNR, INO, Pisa ; INFN, Pisa) ; Flay, D. (Massachusetts U., Amherst) ; Foster, S.B. (Boston U.) ; Friedsam, H. (Fermilab) ; Froemming, N.S. (Northern Illinois U. ; Fermilab) ; Gabbanini, C. (CNR, INO, Pisa ; INFN, Pisa) ; Gaines, I. (Fermilab) ; Galati, M.D. (Pisa U. ; INFN, Pisa) ; Ganguly, S. (Fermilab) ; Garcia, A. (Pennsylvania U.) ; George, J. (Cornell U.) ; Gibbons, L.K. (Cornell U.) ; Gioiosa, A. (INFN, Rome2 ; U. Rome 2, Tor Vergata (main)) ; Giovanetti, K.L. (James Madison U.) ; Girotti, P. (INFN, Pisa) ; Gohn, W. (Kentucky U.) ; Goodenough, L. (Fermilab) ; Gorringe, T. (Kentucky U.) ; Grange, J. (Michigan U.) ; Grant, S. (Argonne) ; Gray, F. (Colorado U., Denver) ; Haciomeroglu, S. (U. Liverpool (main)) ; Halewood-Leagas, T. (U. Liverpool (main)) ; Hampai, D. (Frascati) ; Han, F. (Kentucky U.) ; Hempstead, J. (Pennsylvania U.) ; Hertzog, D.W. (Pennsylvania U.) ; Hesketh, G. (University Coll. London) ; Hess, E. (INFN, Pisa) ; Hibbert, A. (U. Liverpool (main)) ; Hodge, Z. (Pennsylvania U.) ; Hong, K.W. (Virginia U.) ; Hong, R. (Argonne) ; Hu, T. (Shanghai Jiao Tong U.) ; Hu, Y. (Shanghai Jiaotong U. ; SKLPPC, Shanghai) ; Iacovacci, M. (Naples U. ; INFN, Naples) ; Incagli, M. (INFN, Pisa) ; Kammel, P. (Pennsylvania U.) ; Kargiantoulakis, M. (Fermilab) ; Karuza, M. (Rijeka U.) ; Kaspar, J. (Pennsylvania U.) ; Kawall, D. (Massachusetts U., Amherst) ; Kelton, L. (Kentucky U.) ; Keshavarzi, A. (Manchester U.) ; Kessler, D.S. (Massachusetts U., Amherst) ; Khaw, K.S. (Shanghai Jiao Tong U.) ; Khechadoorian, Z. (Cornell U.) ; Khomutov, N.V. (Dubna, JINR) ; Kiburg, B. (Fermilab) ; Kiburg, M. (Fermilab) ; Kim, O. (Mississippi U.) ; Kinnaird, N. (Boston U.) ; Kraegeloh, E. (Michigan U.) ; Krylov, V.A. (Dubna, JINR) ; Kuchinskiy, N.A. (Dubna, JINR) ; Labe, K.R. (Cornell U.) ; LaBounty, J. (Pennsylvania U.) ; Lancaster, M. (Manchester U.) ; Lee, S. (IBS, Daejeon, CAPP) ; Li, B. (Hangzhou, Zhejiang U.) ; Li, D. (SUSTech, SKLQSE, Shenzhen) ; Li, L. (Shanghai Jiaotong U. ; SKLPPC, Shanghai) ; Logashenko, I. (Novosibirsk State U.) ; Campos, A. Lorente (Kentucky U.) ; Lu, Z. (Shanghai Jiaotong U. ; SKLPPC, Shanghai) ; Lucà, A. (Fermilab) ; Lukicov, G. (University Coll. London) ; Lusiani, A. (Pisa, Scuola Normale Superiore) ; Lyon, A.L. (Fermilab) ; MacCoy, B. (Pennsylvania U.) ; Madrak, R. (Fermilab) ; Makino, K. (Michigan State U.) ; Mastroianni, S. (INFN, Naples) ; Miller, J.P. (Boston U.) ; Miozzi, S. (INFN, Rome2 ; U. Rome 2, Tor Vergata (main)) ; Mitra, B. (Mississippi U.) ; Morgan, J.P. (Fermilab) ; Morse, W.M. (Brookhaven) ; Mott, J. (Fermilab) ; Nath, A. (Naples U. ; INFN, Naples) ; Ng, J.K. (Shanghai Jiao Tong U.) ; Nguyen, H. (Fermilab) ; Oksuzian, Y. (Argonne) ; Omarov, Z. (KAIST, Taejon) ; Osofsky, R. (Pennsylvania U.) ; Park, S. (IBS, Daejeon, CAPP) ; Pauletta, G. (INFN, Udine ; Udine U.) ; Piacentino, G.M. (INFN, Rome2 ; U. Rome 2, Tor Vergata (main)) ; Pilato, R.N. (U. Liverpool (main)) ; Pitts, K.T. (Kentucky U.) ; Plaster, B. (Kentucky U.) ; Počanić, D. (Virginia U.) ; Pohlman, N. (Northern Illinois U. ; Fermilab) ; Polly, C.C. (Fermilab) ; Price, J. (U. Liverpool (main)) ; Quinn, B. (Mississippi U.) ; Qureshi, M.U.H. (U. Mainz, PRISMA) ; Ramachandran, S. (Fermilab) ; Ramberg, E. (Fermilab) ; Reimann, R. (U. Mainz, PRISMA) ; Roberts, B.L. (Boston U.) ; Rubin, D.L. (Cornell U.) ; Sakurai, M. (University Coll. London) ; Santi, L. (INFN, Udine ; Udine U.) ; Schlesier, C. (Fermilab) ; Schreckenberger, A. (Fermilab) ; Semertzidis, Y.K. (IBS, Daejeon, CAPP) ; Shemyakin, D. (Novosibirsk State U.) ; Sorbara, M. (Rome U., Tor Vergata) ; Stapleton, J. (Fermilab) ; Still, D. (Fermilab) ; Stöckinger, D. (Dresden, Tech. U.) ; Stoughton, C. (Fermilab) ; Stratakis, D. (Fermilab) ; Swanson, H.E. (Pennsylvania U.) ; Sweetmore, G. (Manchester U.) ; Sweigart, D.A. (Cornell U.) ; Syphers, M.J. (Northern Illinois U. ; Fermilab) ; Tarazona, D.A. (Cornell U.) ; Teubner, T. (U. Liverpool (main)) ; Tewsley-Booth, A.E. (Kentucky U.) ; Tishchenko, V. (Brookhaven) ; Tran, N.H. (U. Liverpool (main)) ; Turner, W. (U. Liverpool (main)) ; Valetov, E. (Michigan State U.) ; Vasilkova, D. (University Coll. London) ; Venanzoni, G. (INFN, Pisa) ; Volnykh, V.P. (Dubna, JINR) ; Walton, T. (Fermilab) ; Weisskopf, A. (Michigan State U.) ; Welty-Rieger, L. (Fermilab) ; Winter, P. (Argonne) ; Wu, Y. (Argonne) ; Yu, B. (Mississippi U.) ; Yucel, M. (Fermilab) ; Zeng, Y. (Shanghai Jiao Tong U.) ; Zhang, C. (U. Liverpool (main))

Imprint 2024-02-23
Number of pages 48
Note 48 pages, 29 figures; 4 pages of Supplement Material
Subject category nucl-ex ; Nuclear Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology ; hep-ex ; Particle Physics - Experiment
Accelerator/Facility, Experiment FNAL E 0989
Abstract We present details on a new measurement of the muon magnetic anomaly, $a_\mu = (g_\mu -2)/2$. The result is based on positive muon data taken at Fermilab's Muon Campus during the 2019 and 2020 accelerator runs. The measurement uses $3.1$ GeV$/c$ polarized muons stored in a $7.1$-m-radius storage ring with a $1.45$ T uniform magnetic field. The value of $ a_{\mu}$ is determined from the measured difference between the muon spin precession frequency and its cyclotron frequency. This difference is normalized to the strength of the magnetic field, measured using Nuclear Magnetic Resonance (NMR). The ratio is then corrected for small contributions from beam motion, beam dispersion, and transient magnetic fields. We measure $a_\mu = 116 592 057 (25) \times 10^{-11}$ (0.21 ppm). This is the world's most precise measurement of this quantity and represents a factor of $2.2$ improvement over our previous result based on the 2018 dataset. In combination, the two datasets yield $a_\mu(\text{FNAL}) = 116 592 055 (24) \times 10^{-11}$ (0.20 ppm). Combining this with the measurements from Brookhaven National Laboratory for both positive and negative muons, the new world average is $a_\mu$(exp) $ = 116 592 059 (22) \times 10^{-11}$ (0.19 ppm).
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 记录创建於2024-03-04,最後更新在2024-03-18


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