# Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm.

@article{Abi2021MeasurementOT, title={Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm.}, author={Babak Abi and T. Albahri and Shamsuddin al-Kilani and D. Allspach and Loreto Peter Alonzi and Antonio Anastasi and Alexey Anisenkov and Farrukh Azfar and Karie Badgley and Stefan Baessler and Ian Bailey and V. A. Baranov and E. Barlas-Yucel and T. Barrett and Emanuela Barzi and Andrea Basti and F Bedeschi and Anindita Behnke and Martin Berz and Meghna Bhattacharya and H. Binney and Robin Bjorkquist and P. Bloom and J. Bono and E. Bottalico and Themis Bowcock and D K Boyden and Giovanni Cantatore and R. M. Carey and J. Carroll and Brendan Cameron Kieran Casey and Diego Cauz and S. Ceravolo and R. Chakraborty and S. P. Chang and Antoine Chapelain and Steve Chappa and Saskia Charity and Rebecca Thalatta Chislett and J. Choi and Zhang Chu and Timothy E. Chupp and Mary E. Convery and Alexander Conway and G. Corradi and Simon Corrodi and Lorenzo Cotrozzi and Jason D. Crnkovic and Sultan Dabagov and Patrick M. De Lurgio and P. T. Debevec and S. Di Falco and P. Di Meo and Giuseppe Di Sciascio and Roberto Luigi Di Stefano and Brian Drendel and Anna Driutti and Viktor Duginov and Michael Eads and Nicholas Scott Eggert and Aaron Epps and Jessica N. Esquivel and Midhat Farooq and Renee Fat{\'e}mi and Claudio Ferrari and M. Fertl and Andrew J. Fiedler and A. T. Fienberg and Andrea Fioretti and David Flay and Sandys B. Foster and Horst W. Friedsam and Emil Frle{\vz} and Nathan Seth Froemming and Jason Fry and C. Fu and C. Gabbanini and Maria Domenica Galati and Sudeshna Ganguly and A. Garcia and Daniel E. Gastler and J. S. George and Lawrence Gibbons and Antonio Gioiosa and Kevin Giovanetti and Pedro Girotti and Wesley Gohn and T. P. Gorringe and Joseph Grange and S. Grant and F. Gray and Selcuk Haciomeroglu and D. Hahn and Tabitha Halewood-leagas and Dariush Hampai and F. Han and E. S. Hazen and Jason Hempstead and Sarah Henry and Alexander T. Herrod and D. W. Hertzog and Gavin Hesketh and Aurelia Hibbert and Zachary Hodge and Jenny Holzbauer and Kyun Woo Hong and R. Hong and Michele Iacovacci and M. Incagli and Carol J. Johnstone and John A. Johnstone and Peter Kammel and Manolis Kargiantoulakis and Marin Karuza and Jaromir Kaspar and D. Kawall and L. Kelton and Alexander Keshavarzi and D. Kessler and Kim Siang Khaw and Zepyoor Khechadoorian and N. V. Khomutov and Brendan Kiburg and Mandy Kiburg and On Kim and S. C. Kim and Y. I. Kim and B. King and N. Kinnaird and Maxim Korostelev and Ioanis Kourbanis and Eva Kraegeloh and Victor Krylov and A. Kuchibhotla and Nikolay Kuchinskiy and K. R. Labe and J. J. LaBounty and Mark Lancaster and M. J. Lee and S W Lee and Sabato Leo and B Y Li and D. M. Li and L. Li and I. Logashenko and A. Lorente Campos and A Luc{\`a} and Gleb Lukicov and G. Luo and Alberto Lusiani and Adam Lyon and B. MacCoy and Robyn Madrak and Kyoko Makino and Fabrizio Marignetti and Stefano Mastroianni and Stephen Maxfield and M. McEvoy and Wyatt Merritt and Alexander A. Mikhailichenko and J. P. Miller and Silvia Miozzi and James P. Morgan and W. M. Morse and James Mott and Erdem Motuk and Ankur Nath and David Newton and Hung T. Nguyen and M. B. Oberling and Rachel Osofsky and J-F. Ostiguy and S. Park and G. Pauletta and Giovanni Maria Piacentino and R. N. Pilato and K Pitts and Brad Plaster and Dinko Po{\vc}ani{\'c} and Nicholas A. Pohlman and C. Polly and Marko Popovic and J. Price and B. Quinn and Nandita Raha and Suvarna Ramachandran and Erik J. Ramberg and N. T. Rider and Jack L. Ritchie and B. L. Roberts and D. Rubin and Lorenzo Santi and Deepak Sathyan and H. Schellman and C. Schlesier and Adam P. Schreckenberger and Yannis K. Semertzidis and Yu. M. Shatunov and Dmitry Nikolaevich Shemyakin and Mary Elizabeth Reed Shenk and D. Sim and M. W. Smith and A. Smith and Aron Soha and Matteo Sorbara and Dominik St{\"o}ckinger and James Stapleton and Dean A. Still and Chris Stoughton and Diktys Stratakis and Charles Strohman and T. Stuttard and H. E. Swanson and G. Sweetmore and David Allen Sweigart and Michael Syphers and D. A. Tarazona and Thomas Teubner and A. E. Tewsley-Booth and K. Thomson and Vladimir Tishchenko and Nam Hoai Tran and W. Turner and E. Valetov and Daria Vasilkova and G. Venanzoni and V. P. Volnykh and T. Walton and M. R. M. Warren and Adrian Weisskopf and L. Welty-Rieger and Mark Whitley and Peter Winter and Andrzej Wolski and M. Wormald and W. Wu and C. Yoshikawa}, journal={Physical review letters}, year={2021}, volume={126 14}, pages={ 141801 } }

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…

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The Muon g-2 Experiment at Fermi National Accelerator Laboratory (FNAL) has measured the muon anomalous precession frequency $\omega_a$ to an uncertainty of 434 parts per billion (ppb), statistical,…

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