Detailed report on the measurement of the positive muon anomalous magnetic moment to 0.20 ppm
Year: 2024
Authors: Aguillard DP., Albahri T., Allspach D., Anisenkov A., Badgley K., Baessler S., Bailey I., Bailey L., Baranov VA., Barlas-Yucel E., Barrett T., Barzi E., Bedeschi F., Berz M., Bhattacharya M., Binney HP., Bloom P., Bono J., Bottalico E., Bowcock T., Braun S., Bressler M., Cantatore G., Carey RM., Casey BCK., Cauz D., Chakraborty R., Chapelain A., Chappa S., Charity S., Chen C., Cheng M., Chislett R., Chu Z., Chupp TE., Claessens C., Convery ME., Corrodi S., Cotrozzi L., Crnkovic JD., Dabagov S., Debevec PT., Di Falco S., Di Sciascio G., Donati S., Drendel B., Driutti A., Duginov VN., Eads M., Edmonds A., Esquivel J., Farooq M., Fatemi R., Ferrari C., Fertl M., Fienberg AT., Fioretti A., Flay D., Foster SB., Friedsam H., Froemming NS., Gabbanini C., Gaines I., Galati MD., Ganguly S., Garcia A., George J., Gibbons LK., Gioiosa A., Giovanetti KL., Girotti P., Gohn W., Goodenough L., Gorringe T., Grange J., Grant S., Gray F., Haciomeroglu S., Halewood-Leagas T., Hampai D., Han F., Hempstead J., Hertzog DW., Hesketh G., Hess E., Hibbert A., Hodge Z., Hong KW., Hong R., Hu T., Hu Y., Iacovacci M., Incagli M., Kammel P., Kargiantoulakis M., Karuza M., Kaspar J., Kawall D., Kelton L., Keshavarzi A., Kessler DS., Khaw KS., Khechadoorian Z., Khomutov N., Kiburg B., Kiburg M., Kim O., Kinnaird N., Kraegeloh E., Krylov VA., Kuchinskiy NA., Labe KR., LaBounty J., Lancaster M., Lee S., Li B., Li D., Li L., Logashenko I., Campos AL., Lu Z., Luca A., Lukicov G., Lusiani A., Lyon AL., MacCoy B., Madrak R., Makino K., Mastroianni S., Miller JP., Miozzi S., Mitra B., Morgan JP., Morse WM., Mott J., Nath A., Ng JK., Nguyen H., Oksuzian Y., Omarov Z., Osofsky R., Park S., Pauletta G., Piacentino GM., Pilato RN., Pitts KT., Plaster B., Pocanic D., Pohlman N., Polly CC., Price J., Quinn B., Qureshi MUH., Ramachandran S., Ramberg E., Reimann R., Roberts BL., Rubin DL., Sakurai M., Santi L., Schlesier C., Schreckenberger A., Semertzidis YK., Shemyakin D., Sorbara M., Stapleton J., Still D., Sttzckinger D., Stoughton C., Stratakis D., Swanson HE., Sweetmore G., Sweigart DA., Syphers MJ., Tarazona DA., Teubner T., Tewsley-Booth AE., Tishchenko V., Tran NH., Turner W., Valetov E., Vasilkova D., Venanzoni G., Volnykh VP., Walton T., Weisskopf A., Welty-Rieger L., Winter P., Wu Y., Yu B., Yucel M., Zeng Y., Zhang C.
Autors Affiliation: Argonne Natl Lab, Lemont, IL USA; Boston Univ, Boston, MA USA; Brookhaven Natl Lab, Upton, NY USA; Budker Inst Nucl Phys, Novosibirsk, Russia; Inst Basic Sci IBS, Ctr Ax & Precis Phys CAPP, Daejeon, South Korea; Cornell Univ, Ithaca, NY USA; Fermilab Natl Accelerator Lab, Batavia, IL USA; INFN, Lab Nazl Frascati, Frascati, Italy; INFN, Sez Napoli, Naples, Italy; INFN, Sez Pisa, Pisa, Italy; INFN, Sez Roma Tor Vergata, Rome, Italy; INFN, Sez Trieste, Trieste, Italy; James Madison Univ, Dept Phys & Astron, Harrisonburg, VA USA; Johannes Gutenberg Univ Mainz, Inst Phys, Mainz, Germany; Johannes Gutenberg Univ Mainz, Cluster Excellence PRISMA, Mainz, Germany; Joint Inst Nucl Res, Dubna, Russia; Korea Adv Inst Sci & Technol KAIST, Dept Phys, Daejeon, South Korea; Univ Lancaster, Lancaster, England; Michigan State Univ, E Lansing, MI USA; North Cent Coll, Naperville, IL USA; Northern Illinois Univ, De Kalb, IL USA; Regis Univ, Denver, CO USA; Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai, Peoples R China; Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai, Peoples R China; Tech Univ Dresden, Inst Kern & Teilchenphys, Dresden, Germany; Univ Molise, Campobasso, Italy; Univ Udine, Udine, Italy; UCL, Dept Phys & Astron, London, England; Univ Illinois, Urbana, IL USA; Univ Kentucky, Lexington, KY USA; Univ Liverpool, Liverpool, England; Univ Manchester, Dept Phys & Astron, Manchester, England; Univ Massachusetts, Dept Phys, Amherst, MA USA; Univ Michigan, Ann Arbor, MI 48109 USA; Univ Mississippi, University, MS USA; Univ Virginia, Charlottesville, VA USA; Univ Washington, Seattle, WA USA; CUNY York Coll, Jamaica, NY USA; Novosibirsk State Univ, Novosibirsk, Russia; Oak Ridge Natl Lab, Oak Ridge, TN USA; Cockcroft Inst Accelerator Sci & Technol, Daresbury, England; Univ Trieste, Trieste, Italy; INFN Grp Collegato Udine, Sez Trieste, Udine, Italy; Shanghai Key Lab Particle Phys & Cosmol, Shanghai, Peoples R China; Key Lab Particle Phys Astrophys & Cosmol MOE, Shanghai, Peoples R China; Univ Pisa, Pisa, Italy; Lebedev Phys Inst, Moscow, Russia; NRNU MEPhI, Moscow, Russia; CNR, Ist Nazl Ottica, Pisa, Italy; Alliance Univ, Bangalore, India; Istinye Univ, Istanbul, Turkiye; Univ Napoli, Naples, Italy; Univ Rijeka, Rijeka, Croatia; Zhejiang Lab, Res Ctr Graph Comp, Hangzhou, Zhejiang, Peoples R China; Shenzhen Technol Univ, Shenzhen, Guangdong, Peoples R China; Scuola Normale Super P isa, Pisa, Italy; Virginia Tech, Blacksburg, VA USA; Wellesley Coll, Wellesley, MA USA; Univ Roma Tor Vergata, Rome, Italy; Inst Interdisciplinary Res Sci & Educ ICISE, Quy Nhon, Binh Dinh, Vietnam.
Abstract: We present details on a new measurement of the muon magnetic anomaly, a mu = ( g mu – 2)/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 /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. The ratio is then corrected for small contributions from beam motion, beam dispersion, and transient magnetic fields. We measure a mu = 116592057(25) ( 25 ) x 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 ( FNAL ) = 116592055(24) ( 24 ) x 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 & eth; exp & THORN; 1 / 4 116592059 & eth;22 & THORN; & eth; 22 & THORN; x 10 – 11 (0.19 ppm). National Laboratory for both positive and negative muons, the new world average is a mu & eth; exp & THORN; 1 / 4 116592059 & eth;22 & THORN; & eth; 22 & THORN; x 10 – 11 (0.19 ppm).
Journal/Review: PHYSICAL REVIEW D
Volume: 110 (3) Pages from: 32009-1 to: 32009-47
More Information: acting under Contract No. DE-AC02-07CH11359. Additional support for the experiment was provided by the Department of Energy offices of HEP, NP, and ASCR (USA) ; the National Science Foundation (USA) ; the Istituto Nazionale di Fisica Nucleare (Italy) ; the Science and Technology Facilities Council (UK) ; the Royal Society (UK) ; the National Natural Science Foundation of China (Grant No. 12211540001, 12075151) ; MSIP, NRF, and IBS-R017-D1 (Republic of Korea) ; the German Research Foundation (DFG) through the Cluster of Excellence PRISMA & thorn; & thorn; (EXC 2118/1, Project ID 39083149) ; the European Union Horizon 2020 research and innovation programme under the Marie Sk & lstrok;odowska-Curie & lstrok; odowska-Curie Grant Agreements No. 101006726, No. 734303; and European Union STRONG 2020 project under Grant Agreement No. 824093 and the Leverhulme Trust, LIP-2021-01.r acting under Contract No. DE-AC02-07CH11359. Additional support for the experiment was provided by the Department of Energy offices of HEP, NP, and ASCR (USA) ; the National Science Foundation (USA) ; the Istituto Nazionale di Fisica Nucleare (Italy) ; the Science and Technology Facilities Council (UK) ; the Royal Society (UK) ; the National Natural Scienc e Foundation of China (Grant No. 12211540001, 12075151) ; MSIP, NRF, and IBS-R017-D1 (Republic of Korea) ; the German Research Foundation (DFG) through the Cluster of Excellence PRISMA & thorn; & thorn; (EXC 2118/1, Project ID 39083149) ; the European Union Horizon 2020 research and innovation programme under the Marie Sk & lstrok;odowska-Curie & lstrok; odowska-Curie Grant Agreements No. 101006726, No. 734303; and European Union STRONG 2020 project under Grant Agreement No. 824093 and the Leverhulme Trust, LIP-2021-01.KeyWords: Temperature-dependence; Nmr; Radiation; Samples; Proton; WaterDOI: 10.1103/PhysRevD.110.032009Citations: 1data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2025-01-12References taken from IsiWeb of Knowledge: (subscribers only)