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Article ; Online: Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm.

Abi, B / Albahri, T / Al-Kilani, S / Allspach, D / Alonzi, L P / Anastasi, A / Anisenkov, A / Azfar, F / Badgley, K / Baeßler, S / Bailey, I / Baranov, V A / Barlas-Yucel, E / Barrett, T / Barzi, E / Basti, A / Bedeschi, F / Behnke, A / Berz, M /
Bhattacharya, M / Binney, H P / Bjorkquist, R / Bloom, P / Bono, J / Bottalico, E / Bowcock, T / Boyden, D / Cantatore, G / Carey, R M / Carroll, J / Casey, B C K / Cauz, D / Ceravolo, S / Chakraborty, R / Chang, S P / Chapelain, A / Chappa, S / Charity, S / Chislett, R / Choi, J / Chu, Z / Chupp, T E / Convery, M E / Conway, A / Corradi, G / Corrodi, S / Cotrozzi, L / Crnkovic, J D / Dabagov, S / De Lurgio, P M / Debevec, P T / Di Falco, S / Di Meo, P / Di Sciascio, G / Di Stefano, R / Drendel, B / Driutti, A / Duginov, V N / Eads, M / Eggert, N / Epps, A / Esquivel, J / Farooq, M / Fatemi, R / Ferrari, C / Fertl, M / Fiedler, A / Fienberg, A T / Fioretti, A / Flay, D / Foster, S B / Friedsam, H / Frlež, E / Froemming, N S / Fry, J / Fu, C / Gabbanini, C / Galati, M D / Ganguly, S / Garcia, A / Gastler, D E / George, J / Gibbons, L K / Gioiosa, A / Giovanetti, K L / Girotti, P / Gohn, W / Gorringe, T / Grange, J / Grant, S / Gray, F / Haciomeroglu, S / Hahn, D / Halewood-Leagas, T / Hampai, D / Han, F / Hazen, E / Hempstead, J / Henry, S / Herrod, A T / Hertzog, D W / Hesketh, G / Hibbert, A / Hodge, Z / Holzbauer, J L / Hong, K W / Hong, R / Iacovacci, M / Incagli, M / Johnstone, C / Johnstone, J A / Kammel, P / Kargiantoulakis, M / Karuza, M / Kaspar, J / Kawall, D / Kelton, L / Keshavarzi, A / Kessler, D / Khaw, K S / Khechadoorian, Z / Khomutov, N V / Kiburg, B / Kiburg, M / Kim, O / Kim, S C / Kim, Y I / King, B / Kinnaird, N / Korostelev, M / Kourbanis, I / Kraegeloh, E / Krylov, V A / Kuchibhotla, A / Kuchinskiy, N A / Labe, K R / LaBounty, J / Lancaster, M / Lee, M J / Lee, S / Leo, S / Li, B / Li, D / Li, L / Logashenko, I / Lorente Campos, A / Lucà, A / Lukicov, G / Luo, G / Lusiani, A / Lyon, A L / MacCoy, B / Madrak, R / Makino, K / Marignetti, F / Mastroianni, S / Maxfield, S / McEvoy, M / Merritt, W / Mikhailichenko, A A / Miller, J P / Miozzi, S / Morgan, J P / Morse, W M / Mott, J / Motuk, E / Nath, A / Newton, D / Nguyen, H / Oberling, M / Osofsky, R / Ostiguy, J-F / Park, S / Pauletta, G / Piacentino, G M / Pilato, R N / Pitts, K T / Plaster, B / Počanić, D / Pohlman, N / Polly, C C / Popovic, M / Price, J / Quinn, B / Raha, N / Ramachandran, S / Ramberg, E / Rider, N T / Ritchie, J L / Roberts, B L / Rubin, D L / Santi, L / Sathyan, D / Schellman, H / Schlesier, C / Schreckenberger, A / Semertzidis, Y K / Shatunov, Y M / Shemyakin, D / Shenk, M / Sim, D / Smith, M W / Smith, A / Soha, A K / Sorbara, M / Stöckinger, D / Stapleton, J / Still, D / Stoughton, C / Stratakis, D / Strohman, C / Stuttard, T / Swanson, H E / Sweetmore, G / Sweigart, D A / Syphers, M J / Tarazona, D A / Teubner, T / Tewsley-Booth, A E / Thomson, K / Tishchenko, V / Tran, N H / Turner, W / Valetov, E / Vasilkova, D / Venanzoni, G / Volnykh, V P / Walton, T / Warren, M / Weisskopf, A / Welty-Rieger, L / Whitley, M / Winter, P / Wolski, A / Wormald, M / Wu, W / Yoshikawa, C

Physical review letters

2021  Volume 126, Issue 14, Page(s) 141801

Abstract: We present the first results of the Fermilab National Accelerator Laboratory (FNAL) Muon g-2 Experiment for the positive muon magnetic anomaly a_{μ}≡(g_{μ}-2)/2. The anomaly is determined from the precision measurements of two angular frequencies. ... ...

Abstract We present the first results of the Fermilab National Accelerator Laboratory (FNAL) Muon g-2 Experiment for the positive muon magnetic anomaly a_{μ}≡(g_{μ}-2)/2. The anomaly is determined from the precision measurements of two angular frequencies. Intensity variation of high-energy positrons from muon decays directly encodes the difference frequency ω_{a} between the spin-precession and cyclotron frequencies for polarized muons in a magnetic storage ring. The storage ring magnetic field is measured using nuclear magnetic resonance probes calibrated in terms of the equivalent proton spin precession frequency ω[over ˜]_{p}^{'} in a spherical water sample at 34.7 °C. The ratio ω_{a}/ω[over ˜]_{p}^{'}, together with known fundamental constants, determines a_{μ}(FNAL)=116 592 040(54)×10^{-11} (0.46 ppm). The result is 3.3 standard deviations greater than the standard model prediction and is in excellent agreement with the previous Brookhaven National Laboratory (BNL) E821 measurement. After combination with previous measurements of both μ^{+} and μ^{-}, the new experimental average of a_{μ}(Exp)=116 592 061(41)×10^{-11} (0.35 ppm) increases the tension between experiment and theory to 4.2 standard deviations.
Language English
Publishing date 2021-04-23
Publishing country United States
Document type Journal Article
ZDB-ID 208853-8
ISSN 1079-7114 ; 0031-9007
ISSN (online) 1079-7114
ISSN 0031-9007
DOI 10.1103/PhysRevLett.126.141801
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Z 4' 58/153: Show issues
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