| Title: |
Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm |
| Authors: |
Aguillard, David; Albahri, Talal; Allspach, D.; Anisenkov, Alexey; Badgley, Karie; Baeßler, Stefan; Bailey, Ian; Bailey, L.; Baranov, V.A.; Barlas Yucel, Esra; Barrett, T.; Barzi, Emanuela; Bedeschi, Franco; Berz, Martin; Bhattacharya, M.; Binney, Hannah; Bloom, Paul; Bono, Jason; Bottalico, Elia; Bowcock, Themistocles; Braun, Svende; Bressler, Matthew; Cantatore, Giovanni; Carey, Robert; Casey, Brendan; Cauz, Diego; Chakraborty, Ritwika; Chapelain, Antoine; Chappa, S.; Charity, Saskia; Chen, C.; Cheng, Murong; Chislett, Rebecca; Chu, Zhaolin; Chupp, Timothy; Claessens, Christine; Convery, Mary; Corrodi, Simon; Cotrozzi, Lorenzo; Crnkovic, Jason; Dabagov, Sultan; Debevec, Paul; Di Falco, Stefano; Di Sciascio, Giuseppe; Drendel, Brian; Driutti, Anna; Duginov, Victor; Eads, Michael; Edmonds, Andrew; Esquivel, Jessica; Farooq, Midhat; Fatemi, Renee; Ferrari, Carlo; Fertl, Martin; Fienberg, Aaron; Fioretti, Andrea; Flay, David; Foster, Sean; Friedsam, H.; Froemming, N.S.; Gabbanini, Carlo; Gaines, Irwin; Galati, Maria Domenica; Ganguly, Sudeshna; Garcia, Alejandro; George, J.; Gibbons, Lawrence; Gioiosa, Antonio; Giovanetti, Kevin; Girotti, Paolo; Gohn, Wesley; Goodenough, Lisa; Gorringe, Tim; Grange, Joseph; Grant, S.; Gray, Frederick; Haciomeroglu, Selcuk; Halewood-Leagas, Tabitha; Hampai, Dariush; Han, F.; Hempstead, Jason B; Hertzog, David; Hesketh, Gavin; Hess, Emma; Hibbert, A.; Hodge, Zachary; Hong, K.W.; Hong, Ran; Hu, Y.; Iacovacci, Michele; Incagli, Marco; Kammel, Peter; Kargiantoulakis, Manolis; Karuza, Marin; Kašpar, Jan; Kawall, David; Kelton, Laura; Keshavarzi, Alexander; Kessler, D.S.; Khaw, Kim Siang; Khechadoorian, Zepyoor; Khomutov, Nikolay; Kiburg, Brendan; Kiburg, Mandy; Kim, O.; Kinnaird, Nicholas; Kraegeloh, Eva; Krylov, V.A.; Kuchinskiy, N.; Labe, Kevin; LaBounty, J.; Lancaster, Mark; Lee, Soohyung; Li, B.; Li, D.; Li, Liang; Logashenko, Ivan; Lorente Campos, Abel; Lu, Zejia; Lucà, Alessandra; Lukicov, Gleb; Lusiani, Alberto; Lyon, Adam; MacCoy, Brynn; Madrak, Robyn; Makino, Kyoko; Mastroianni, Stefano; Miller, James; Miozzi, Silvia; Mitra, B.; Morgan, James; Morse, William; Mott, James; Nath, Atanu; Ng, Jun Kai; Nguyen, H.; Oksuzian, Yuri; Omarov, Zhanibek; Osofsky, Rachel; Park, S.; Pauletta, Giovanni; Piacentino, G.M.; Pilato, Riccardo Nunzio; Pitts, Kevin; Plaster, Bradley; Pocanic, Dinko; Pohlman, Nicholas; Polly, Charles; Price, Joseph; Quinn, Breese; Qureshi, Mohammad Ubaidullah Hassan; Ramachandran, Suvarna; Ramberg, E.; Reimann, René; Roberts, Bradley Lee; Rubin, D.L.; Santi, Lorenzo Gianni; Schlesier, Cristina; Schreckenberger, Adam; Semertzidis, Yannis; Shemyakin, Dmitry; Sorbara, Matteo; Stapleton, James; Still, D.; Stöckinger, Dominik; Stoughton, Chris; Stratakis, Diktys; Swanson, Erik; Sweetmore, George; Sweigart, David; Syphers, Michael; Tarazona, David; Teubner, Thomas; Tewsley-Booth, Alexander; Tianqi, Hu; Tishchenko, Vladimir; Tran, Nam H.; Turner, William; Valetov, Eremey; Vasilkova, Dominika; Venanzoni, Graziano; Vladimir, Volnykh; Walton, T.; Weisskopf, Adrian; Welty-Rieger, L.; Winter, Peter; Wu, Yongyi; Yu, Byungchul; Yucel, Mete; Zeng, Yonghao; Zhang, Ce |
| Source: |
Phys.Rev.Lett., 131(2023), 16, 161802, (2023-10-17) |
| Publisher Information: |
APS |
| Publication Year: |
2023 |
| Collection: |
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
| Subject Terms: |
muon: magnetic moment; magnetic moment: anomaly; muon: decay; magnetic field; precession: frequency; beam dynamics; beam: stability; positron; Fermilab; numerical calculations; experimental results; S004MM; High Energy Physics - Experiment |
| Description: |
We present a new measurement of the positive muon magnetic anomaly, aμ≡(gμ-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˜p′, and of the anomalous precession frequency corrected for beam dynamics effects, ωa. From the ratio ωa/ω˜p′, together with precisely determined external parameters, we determine aμ=116 592 057(25)×10-11 (0.21 ppm). Combining this result with our previous result from the 2018 data, we obtain aμ(FNAL)=116 592 055(24)×10-11 (0.20 ppm). The new experimental world average is aμ(exp)=116 592 059(22)×10-11 (0.19 ppm), which represents a factor of 2 improvement in precision. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
https://arxiv.org/pdf/2308.06230; https://www.openaccessrepository.it/communities/inspire-hep; https://doi.org/10.1103/PhysRevLett.131.161802; https://inspirehep.net/literature/2687002 |
| DOI: |
10.1103/PhysRevLett.131.161802 |
| Availability: |
https://doi.org/10.1103/PhysRevLett.131.161802; https://inspirehep.net/literature/2687002 |
| Rights: |
info:eu-repo/semantics/openAccess ; Creative Commons Attribution 4.0 International ; https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.CB408A7A |
| Database: |
BASE |