Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm

dc.authoridLi, Liang/0000-0001-6411-6107
dc.authoridSorbara, Matteo/0000-0002-3996-0370
dc.authoridKeshavarzi, Alexander/0000-0001-9085-7283
dc.authoridValetov, Eremey/0000-0003-4341-0379
dc.authoridLi, Bingzhi/0000-0001-6074-1079
dc.authoridAnisenkov, Alexey/0000-0002-7201-5936
dc.authoridReimann, Rene/0000-0002-1983-8271
dc.authorwosidLi, Liang/O-1107-2015
dc.authorwosidSorbara, Matteo/KHD-7674-2024
dc.authorwosidli, bz/GVR-7133-2022
dc.authorwosidKeshavarzi, Alexander/HJJ-1416-2023
dc.authorwosidValetov, Eremey/M-9202-2018
dc.authorwosidKhaw, Kim Siang/GYR-0232-2022
dc.authorwosidLancaster, Mark/F-5254-2018
dc.contributor.authorAguillard, D. P.
dc.contributor.authorAlbahri, T.
dc.contributor.authorAllspach, D.
dc.contributor.authorAnisenkov, A.
dc.contributor.authorBadgley, K.
dc.contributor.authorBaessler, S.
dc.contributor.authorBailey, I.
dc.date.accessioned2024-05-19T14:51:04Z
dc.date.available2024-05-19T14:51:04Z
dc.date.issued2023
dc.departmentİstinye Üniversitesien_US
dc.description.abstractWe present a new measurement of the positive muon magnetic anomaly, a, equivalent to (g,- 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, w similar to ip, and of the anomalous precession frequency corrected for beam dynamics effects, wa. From the ratio wa/w similar to ip, together with precisely determined external parameters, we determine a, = 116 592 057(25) x 10-11 (0.21 ppm). Combining this result with our previous result from the 2018 data, we obtain a,(FNAL) = 116592055(24) x 10-11 (0.20 ppm). The new experimental world average is a,(exp) = 116 592 059(22) x 10-11 (0.19 ppm), which represents a factor of 2 improvement in precision.en_US
dc.description.sponsorshipFermi Research Alliance, LLC (FRA); Department of Energy offices of HEP and NP (USA); National Science Foundation (USA); Istituto Nazionale di Fisica Nucleare (Italy); Science and Technology Facilities Council (UK); Royal Society (UK); National Natural Science Foundation of China [DE-AC02-07CH11359]; MSIP, NRF, (Republic of Korea); German Research Foundation (DFG); European Union; Leverhulme Trust; [11975153]; [12075151]; [IBS-R017-D1]; [39083149]; [101006726]; [734303]; [824093]; [LIP-2021-01]en_US
dc.description.sponsorshipWe thank the Fermilab management and staff for their strong support of this experiment, as well as our university and national laboratory engineers, technicians, and workshops for their tremendous support. Greg Bock and Joe Lykken set the blinding clock and diligently monitored its stability. The Muon g - 2 Experiment was performed at the Fermi National Accelerator Laboratory, a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA) , acting under Contract No. DE-AC02-07CH11359. Additional support for the experiment was provided by the Department of Energy offices of HEP and NP (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 (Grants No. 11975153 and No. 12075151) , MSIP, NRF, and IBS-R017-D1 (Republic of Korea) , the German Research Foundation (DFG) through the Cluster of Excellence PRISMA+ (EXC 2118/1, Project ID 39083149) , the European Union Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreements No. 101006726 and No. 734303, the European Union STRONG 2020 project under Grant Agreement No. 824093, and the Leverhulme Trust, LIP-2021-01.en_US
dc.identifier.doi10.1103/PhysRevLett.131.161802
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issue16en_US
dc.identifier.pmid37925710en_US
dc.identifier.urihttps://doi.org10.1103/PhysRevLett.131.161802
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5867
dc.identifier.volume131en_US
dc.identifier.wosWOS:001105904700004en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherAmer Physical Socen_US
dc.relation.ispartofPhysical Review Lettersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240519_kaen_US
dc.subject[No Keywords]en_US
dc.titleMeasurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppmen_US
dc.typeArticleen_US

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