Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm.

Autor: Aguillard DP; University of Michigan, Ann Arbor, Michigan, USA., Albahri T; University of Liverpool, Liverpool, United Kingdom., Allspach D; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Anisenkov A; Budker Institute of Nuclear Physics, Novosibirsk, Russia., Badgley K; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Baeßler S; University of Virginia, Charlottesville, Virginia, USA., Bailey I; Lancaster University, Lancaster, United Kingdom., Bailey L; Department of Physics and Astronomy, University College London, London, United Kingdom., Baranov VA; Joint Institute for Nuclear Research, Dubna, Russia., Barlas-Yucel E; University of Illinois at Urbana-Champaign, Urbana, Illinois, USA., Barrett T; Cornell University, Ithaca, New York, USA., Barzi E; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Bedeschi F; INFN, Sezione di Pisa, Pisa, Italy., Berz M; Michigan State University, East Lansing, Michigan, USA., Bhattacharya M; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Binney HP; University of Washington, Seattle, Washington, USA., Bloom P; North Central College, Naperville, Illinois, USA., Bono J; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Bottalico E; University of Liverpool, Liverpool, United Kingdom., Bowcock T; University of Liverpool, Liverpool, United Kingdom., Braun S; University of Washington, Seattle, Washington, USA., Bressler M; Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA., Cantatore G; INFN, Sezione di Trieste, Trieste, Italy., Carey RM; Boston University, Boston, Massachusetts, USA., Casey BCK; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Cauz D; Università di Udine, Udine, Italy., Chakraborty R; University of Kentucky, Lexington, Kentucky, USA., Chapelain A; Cornell University, Ithaca, New York, USA., Chappa S; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Charity S; University of Liverpool, Liverpool, United Kingdom., Chen C; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China.; Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China., Cheng M; University of Illinois at Urbana-Champaign, Urbana, Illinois, USA., Chislett R; Department of Physics and Astronomy, University College London, London, United Kingdom., Chu Z; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China., Chupp TE; University of Michigan, Ann Arbor, Michigan, USA., Claessens C; University of Washington, Seattle, Washington, USA., Convery ME; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Corrodi S; Argonne National Laboratory, Lemont, Illinois, USA., Cotrozzi L; INFN, Sezione di Pisa, Pisa, Italy., Crnkovic JD; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Dabagov S; INFN, Laboratori Nazionali di Frascati, Frascati, Italy., Debevec PT; University of Illinois at Urbana-Champaign, Urbana, Illinois, USA., Di Falco S; INFN, Sezione di Pisa, Pisa, Italy., Di Sciascio G; INFN, Sezione di Roma Tor Vergata, Rome, Italy., Drendel B; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Driutti A; INFN, Sezione di Pisa, Pisa, Italy., Duginov VN; Joint Institute for Nuclear Research, Dubna, Russia., Eads M; Northern Illinois University, DeKalb, Illinois, USA., Edmonds A; Boston University, Boston, Massachusetts, USA., Esquivel J; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Farooq M; University of Michigan, Ann Arbor, Michigan, USA., Fatemi R; University of Kentucky, Lexington, Kentucky, USA., Ferrari C; INFN, Sezione di Pisa, Pisa, Italy., Fertl M; Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany., Fienberg AT; University of Washington, Seattle, Washington, USA., Fioretti A; INFN, Sezione di Pisa, Pisa, Italy., Flay D; Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA., Foster SB; Boston University, Boston, Massachusetts, USA., Friedsam H; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Froemming NS; Northern Illinois University, DeKalb, Illinois, USA., Gabbanini C; INFN, Sezione di Pisa, Pisa, Italy., Gaines I; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Galati MD; INFN, Sezione di Pisa, Pisa, Italy., Ganguly S; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Garcia A; University of Washington, Seattle, Washington, USA., George J; Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA., Gibbons LK; Cornell University, Ithaca, New York, USA., Gioiosa A; Università del Molise, Campobasso, Italy., Giovanetti KL; Department of Physics and Astronomy, James Madison University, Harrisonburg, Virginia, USA., Girotti P; INFN, Sezione di Pisa, Pisa, Italy., Gohn W; University of Kentucky, Lexington, Kentucky, USA., Goodenough L; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Gorringe T; University of Kentucky, Lexington, Kentucky, USA., Grange J; University of Michigan, Ann Arbor, Michigan, USA., Grant S; Argonne National Laboratory, Lemont, Illinois, USA.; Department of Physics and Astronomy, University College London, London, United Kingdom., Gray F; Regis University, Denver, Colorado, USA., Haciomeroglu S; Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea., Halewood-Leagas T; University of Liverpool, Liverpool, United Kingdom., Hampai D; INFN, Laboratori Nazionali di Frascati, Frascati, Italy., Han F; University of Kentucky, Lexington, Kentucky, USA., Hempstead J; University of Washington, Seattle, Washington, USA., Hertzog DW; University of Washington, Seattle, Washington, USA., Hesketh G; Department of Physics and Astronomy, University College London, London, United Kingdom., Hess E; INFN, Sezione di Pisa, Pisa, Italy., Hibbert A; University of Liverpool, Liverpool, United Kingdom., Hodge Z; University of Washington, Seattle, Washington, USA., Hong KW; University of Virginia, Charlottesville, Virginia, USA., Hong R; Argonne National Laboratory, Lemont, Illinois, USA.; University of Kentucky, Lexington, Kentucky, USA., Hu T; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China.; Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China., Hu Y; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China., Iacovacci M; INFN, Sezione di Napoli, Naples, Italy., Incagli M; INFN, Sezione di Pisa, Pisa, Italy., Kammel P; University of Washington, Seattle, Washington, USA., Kargiantoulakis M; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Karuza M; INFN, Sezione di Trieste, Trieste, Italy., Kaspar J; University of Washington, Seattle, Washington, USA., Kawall D; Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA., Kelton L; University of Kentucky, Lexington, Kentucky, USA., Keshavarzi A; Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom., Kessler DS; Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA., Khaw KS; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China.; Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China., Khechadoorian Z; Cornell University, Ithaca, New York, USA., Khomutov NV; Joint Institute for Nuclear Research, Dubna, Russia., Kiburg B; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Kiburg M; Fermi National Accelerator Laboratory, Batavia, Illinois, USA.; North Central College, Naperville, Illinois, USA., Kim O; University of Mississippi, University, Mississippi, USA., Kinnaird N; Boston University, Boston, Massachusetts, USA., Kraegeloh E; University of Michigan, Ann Arbor, Michigan, USA., Krylov VA; Joint Institute for Nuclear Research, Dubna, Russia., Kuchinskiy NA; Joint Institute for Nuclear Research, Dubna, Russia., Labe KR; Cornell University, Ithaca, New York, USA., LaBounty J; University of Washington, Seattle, Washington, USA., Lancaster M; Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom., Lee S; Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea., Li B; Argonne National Laboratory, Lemont, Illinois, USA.; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China., Li D; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China., Li L; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China., Logashenko I; Budker Institute of Nuclear Physics, Novosibirsk, Russia., Lorente Campos A; University of Kentucky, Lexington, Kentucky, USA., Lu Z; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China., Lucà A; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Lukicov G; Department of Physics and Astronomy, University College London, London, United Kingdom., Lusiani A; INFN, Sezione di Pisa, Pisa, Italy., Lyon AL; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., MacCoy B; University of Washington, Seattle, Washington, USA., Madrak R; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Makino K; Michigan State University, East Lansing, Michigan, USA., Mastroianni S; INFN, Sezione di Napoli, Naples, Italy., Miller JP; Boston University, Boston, Massachusetts, USA., Miozzi S; INFN, Sezione di Roma Tor Vergata, Rome, Italy., Mitra B; University of Mississippi, University, Mississippi, USA., Morgan JP; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Morse WM; Brookhaven National Laboratory, Upton, New York, USA., Mott J; Boston University, Boston, Massachusetts, USA.; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Nath A; INFN, Sezione di Napoli, Naples, Italy., Ng JK; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China.; Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China., Nguyen H; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Oksuzian Y; Argonne National Laboratory, Lemont, Illinois, USA., Omarov Z; Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea.; Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea., Osofsky R; University of Washington, Seattle, Washington, USA., Park S; Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea., Pauletta G; Università di Udine, Udine, Italy., Piacentino GM; Università del Molise, Campobasso, Italy., Pilato RN; University of Liverpool, Liverpool, United Kingdom., Pitts KT; University of Illinois at Urbana-Champaign, Urbana, Illinois, USA., Plaster B; University of Kentucky, Lexington, Kentucky, USA., Počanić D; University of Virginia, Charlottesville, Virginia, USA., Pohlman N; Northern Illinois University, DeKalb, Illinois, USA., Polly CC; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Price J; University of Liverpool, Liverpool, United Kingdom., Quinn B; University of Mississippi, University, Mississippi, USA., Qureshi MUH; Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany., Ramachandran S; Argonne National Laboratory, Lemont, Illinois, USA., Ramberg E; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Reimann R; Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany., Roberts BL; Boston University, Boston, Massachusetts, USA., Rubin DL; Cornell University, Ithaca, New York, USA., Santi L; Università di Udine, Udine, Italy., Schlesier C; University of Illinois at Urbana-Champaign, Urbana, Illinois, USA., Schreckenberger A; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Semertzidis YK; Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea.; Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea., Shemyakin D; Budker Institute of Nuclear Physics, Novosibirsk, Russia., Sorbara M; INFN, Sezione di Roma Tor Vergata, Rome, Italy., Stöckinger D; Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany., Stapleton J; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Still D; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Stoughton C; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Stratakis D; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Swanson HE; University of Washington, Seattle, Washington, USA., Sweetmore G; Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom., Sweigart DA; Cornell University, Ithaca, New York, USA., Syphers MJ; Northern Illinois University, DeKalb, Illinois, USA., Tarazona DA; Cornell University, Ithaca, New York, USA.; Michigan State University, East Lansing, Michigan, USA.; University of Liverpool, Liverpool, United Kingdom., Teubner T; University of Liverpool, Liverpool, United Kingdom., Tewsley-Booth AE; University of Kentucky, Lexington, Kentucky, USA.; University of Michigan, Ann Arbor, Michigan, USA., Tishchenko V; Brookhaven National Laboratory, Upton, New York, USA., Tran NH; Boston University, Boston, Massachusetts, USA., Turner W; University of Liverpool, Liverpool, United Kingdom., Valetov E; Michigan State University, East Lansing, Michigan, USA., Vasilkova D; Department of Physics and Astronomy, University College London, London, United Kingdom.; University of Liverpool, Liverpool, United Kingdom., Venanzoni G; University of Liverpool, Liverpool, United Kingdom., Volnykh VP; Joint Institute for Nuclear Research, Dubna, Russia., Walton T; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Weisskopf A; Michigan State University, East Lansing, Michigan, USA., Welty-Rieger L; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Winter P; Argonne National Laboratory, Lemont, Illinois, USA., Wu Y; Argonne National Laboratory, Lemont, Illinois, USA., Yu B; University of Mississippi, University, Mississippi, USA., Yucel M; Fermi National Accelerator Laboratory, Batavia, Illinois, USA., Zeng Y; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China.; Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China., Zhang C; University of Liverpool, Liverpool, United Kingdom.
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2023 Oct 20; Vol. 131 (16), pp. 161802.
DOI: 10.1103/PhysRevLett.131.161802
Abstrakt: We present a new measurement of the positive muon magnetic anomaly, a_{μ}≡(g_{μ}-2)/2, from the Fermilab Muon g-2 Experiment using data collected in 2019 and 2020. We have analyzed more than 4 times the number of positrons from muon decay than in our previous result from 2018 data. The systematic error is reduced by more than a factor of 2 due to better running conditions, a more stable beam, and improved knowledge of the magnetic field weighted by the muon distribution, ω[over ˜]_{p}^{'}, and of the anomalous precession frequency corrected for beam dynamics effects, ω_{a}. From the ratio ω_{a}/ω[over ˜]_{p}^{'}, together with precisely determined external parameters, we determine a_{μ}=116 592 057(25)×10^{-11} (0.21 ppm). Combining this result with our previous result from the 2018 data, we obtain a_{μ}(FNAL)=116 592 055(24)×10^{-11} (0.20 ppm). The new experimental world average is a_{μ}(exp)=116 592 059(22)×10^{-11} (0.19 ppm), which represents a factor of 2 improvement in precision.
Databáze: MEDLINE