The Measurement of the Anomalous Magnetic Moment of the Muon at Fermilab

Logashenko, I.B.; Grange, J.; Winter, P.; Carey, R. M.; Hazen, E.; Kinnaird, N.; Miller, J.; Mott, J.; Roberts, B. L.; Crnkovic, J.; Morse, W. M.; Sayed, Hisham; Tishchenko, V. G.; Дружинин, В. П.; Shatunov, Y.M.; Bjorkquist, R.; Chapelain, Antoine; Eggert, N.; Frankenthal, A.; Gibbons, L. K.; Kim, S.; Mikhailichenko, A.; Orlov, Y.; Rider, N.; Rubin, D.; Sweigart, D. A.; Allspach, D.; Barzi, E.; Casey, B. C.K.; Convery, M. E.; Drendel, Brian; Freidsam, H.; Johnstone, C.; Johnstone, John; Kiburg, B.; Kourbanis, I.; Lyon, A. L.; Merritt, K. W.; Morgan, James P.; Nguyen, H. T.; Ostiguy, J.‐F.; Para, A.; Polly, C. C.; Popovic, M.; Ramberg, E.; Rominsky, M.; Soha, A.; Still, D.; Walton, T.; Yoshikawa, C.; Jungmann, Klaus-Peter; Onderwater, C. J. G.; Debevec, P. T.; Leo, S.; Pitts, K.; Schlesier, Christin; Anastasi, A.; Babusci, D.; Corradi, G.; Hampai, D.; Palladino, A.; Venanzoni, G.; Dabagov, S.B.; Ferrari, C.; Fioretti, A.; Gabbanini, C.; Stefano, R. Di; Marignetti, Fabrizio; Iacovacci, M.; Mastroianni, S.; Sciascio, G. Di; Moricciani, D.; Cantatore, G.; Karuza, M.; Giovanetti, K. L.; Baranov, V. A.; Duginov, V. N.; Khomutov, N. V.; Крылов, В. А.; Kuchinskiy, N. A.; Volnykh, V. P.; Gaisser, M.; Hacıömeroğlu, Selçuk; Kim, Y.; Lee, S.; Lee, M.; Semertzidis, Y. K.; Won, E.; Fatemi, R.; Gohn, W.; Gorringe, T. P.; Bowcock, T. J. V.; Carroll, John L.; King, B. T.; Maxfield, S. J.; Smith, A.; Teubner, T.; Whitley, M.; Wormald, M.; Wolski, A.; Al-Kilani, S.; Chislett, R. T.; Lancaster, M.; Motuk, E.; Stuttard, T.; Warren, M.; Flay, D.; Kawall, D.; Meadows, Z. A.; Syphers, M.; Tarazona, D.; Chupp, T. E.; Tewlsey-Booth, A.; Quinn, B.; Eads, M.; Epps, Aaron; Luo, Guang; McEvoy, M.; Pohlman, Nicholas A.; Shenk, M.; Gouvêa, André de; Welty-Rieger, L.; Schellman, H.; Abi, B.; Azfar, F.; Henry, S.; Gray, F.; Fu, C. D.; Ji, X. B.; Li, L.; Yang, H. B.; Stöckinger, Dominik; Cauz, D.; Pauletta, G.; Santi, L.; Baeßler, S.; Frlež, E.; Počanić, D.; Alonzi, L. P.; Fertl, M.; Fienberg, A. T.; Froemming, N. S.; Garcı́a, A.; Hertzog, D. W.; Kammel, P.; Kašpar, J.; Osofsky, R.; Smith, M.W.E.; Swanson, Erik; Lynch, Kevin R.

doi:10.1063/1.4917553

Cited by 22 publications

(15 citation statements)

References 9 publications

(9 reference statements)

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“…Since the above tension may be an exciting indication of new physics (NP) beyond the SM, an intense research program is currently underway in order to achieve a significant improvement of the uncertainties. The forthcoming g − 2 experiments at Fermilab (E989) [6] and J-PARC (E34) [7] aim at reducing the experimental uncertainty by a factor of four, down to 0.14 ppm, making the comparison of the experimental value a exp µ with the theoretical prediction a SM µ one of the most stringent tests of the SM in the quest of NP effects. On the theoretical side, the main uncertainty on a SM µ comes from hadronic contributions, related to the hadronic vacuum polarization (HVP) and light-by-light terms [3,8].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic and strong isospin-breaking corrections to the muon g−2 from lattice QCD+QED

et al. 2019

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We present a lattice calculation of the leading-order electromagnetic and strong isospinbreaking corrections to the hadronic vacuum polarization (HVP) contribution to the anomalous magnetic moment of the muon. We employ the gauge configurations generated by the European Twisted Mass Collaboration (ETMC) with N f = 2 + 1 + 1 dynamical quarks at three values of the lattice spacing (a 0.062, 0.082, 0.089 fm) with pion masses between 210 and 450 MeV. The results are obtained adopting the RM123 approach in the quenched-QED approximation, which neglects the charges of the sea quarks. Quark disconnected diagrams are not included. After the extrapolations to the physical pion mass and to the continuum and infinite-volume limits the contributions of the light, strange and charm quarks are respectively equal to δa HVP µ (ud) = 7.1 (2.5) · 10 −10 , δa HVP µ (s) = −0.0053 (33) · 10 −10 and δa HVP µ (c) = 0.0182 (36) · 10 −10 . At leading order in α em and (m d − m u )/Λ QCD we obtain δa HVP µ (udsc) = 7.1 (2.9) · 10 −10 , which is currently the most accurate determination of the isospin-breaking corrections to a HVP µ .

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Section: Introductionmentioning

confidence: 99%

Electromagnetic and strong isospin-breaking corrections to the muon g−2 from lattice QCD+QED

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Since this tension might be an exciting indication of New Physics beyond the SM, an intense research program is currently underway in order to achieve a significant reduction of the experimental and theoretical uncertainties. New (g − 2) experiments at Fermilab (E989) [3] and J-PARC (E34) [4] aim at a fourfold reduction of the experimental uncertainty such that a similar reduction in the theoretical uncertainty is of timely interest. Hadronic loop contributions due to the HVP and hadronic lightby-light terms [5] give rise to the main theoretical uncertainty and, with a view to the planned experimental accuracy, they will soon become a major limitation of this SM test.…”

Section: Introductionmentioning

confidence: 99%

Isospin-breaking corrections to the muon magnetic anomaly in Lattice QCD

Giusti¹,

Martinelli²,

Sanfilippo³

et al. 2020

Proceedings of the 9th International Workshop on Chiral Dynamics — PoS(CD2018)

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In this contribution we present a lattice calculation of the leading-order electromagnetic and strong isospin-breaking (IB) corrections to the quark-connected hadronic-vacuum-polarization (HVP) contribution to the anomalous magnetic moment of the muon. The results are obtained adopting the RM123 approach in the quenched-QED approximation and using the QCD gauge configurations generated by the ETM Collaboration with N f = 2 + 1 + 1 dynamical quarks, at three values of the lattice spacing (a 0.062, 0.082, 0.089 fm), at several lattice volumes and with pion masses between 210 and 450 MeV. After the extrapolations to the physical pion mass and to the continuum and infinite-volume limits the contributions of the light, strange and charm quarks are respectively equal to δ a HVP µ (ud) = 7.1 (2.5) · 10 −10 , δ a HVP µ (s) = −0.0053 (33) · 10 −10 and δ a HVP µ (c) = 0.0182 (36) · 10 −10 . At leading order in α em and (m d − m u )/Λ QCD we obtain δ a HVP µ (udsc) = 7.1 (2.9) · 10 −10 , which is currently the most accurate determination of the IB corrections to a HVP µ .

show abstract

“…The forthcoming g − 2 experiments at Fermilab (E989) [3] and J-PARC (E34) [4] aim at reducing the experimental uncertainty by a factor of four, down to 0.14 ppm. Such a precision makes the comparison of the experimental value of a µ with theoretical predictions one of the most important tests of the Standard Model in the quest for new physics effects.…”

Section: Introductionmentioning

confidence: 99%

Strange and charm HVP contributions to the muon (g − 2) including QED corrections with twisted-mass fermions

Giusti

Lubicz

Martinelli

et al. 2017

J. High Energ. Phys.

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We present a lattice calculation of the Hadronic Vacuum Polarization (HVP) contribution of the strange and charm quarks to the anomalous magnetic moment of the muon including leading-order electromagnetic corrections. We employ the gauge configurations generated by the European Twisted Mass Collaboration (ETMC) with N f = 2 + 1 + 1 dynamical quarks at three values of the lattice spacing (a 0.062, 0.082, 0.089 fm) with pion masses in the range M π 210-450 MeV. The strange and charm quark masses are tuned at their physical values. Neglecting disconnected diagrams and after the extrapolations to the physical pion mass and to the continuum limit we obtain: a s µ (α 2 em ) = (53.1 ± 2.5) · 10 −10 , a s µ (α 3 em ) = (−0.018 ± 0.011) · 10 −10 and a c µ (α 2 em ) = (14.75 ± 0.56) · 10 −10 , a c µ (α 3 em ) = (−0.030 ± 0.013) · 10 −10 for the strange and charm contributions, respectively.

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The Measurement of the Anomalous Magnetic Moment of the Muon at Fermilab

Cited by 22 publications

References 9 publications

Electromagnetic and strong isospin-breaking corrections to the muon g−2 from lattice QCD+QED

Electromagnetic and strong isospin-breaking corrections to the muon g−2 from lattice QCD+QED

Isospin-breaking corrections to the muon magnetic anomaly in Lattice QCD

Strange and charm HVP contributions to the muon (g − 2) including QED corrections with twisted-mass fermions

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