Datensatz #1011155

MUON

Lattice determination of the muon's anomalous magnetic moment

Grant period	2023-10-01 - 2028-09-30
Funding body	European Union
Call number	ERC-2021-ADG
Grant number	101054515
Identifier	G:(EU-Grant)101054515

Note: On 4/7/2021 the Fermilab announced the result of a two decade long investigation to determine the magnetic moment of the muon. By tradition, data-driven theoretical methods have been used for 50 years to calculate this magnetic moment. But, interestingly, in the last 20 years growing discrepancies were noted between theoretical and experimental findings. In the literature, the result obtained by using the data-driven method is called the “consensus value" - and it is 4.2 sigma away from the combined experimental result. This 4.2-sigma discrepancy was interpreted by many physicists as a sign for new physics with a new and unknown force - and hundreds of papers appeared in the last few months to explain the 4.2-sigma tension by some form of new physics. For theoreticians this is an extremely exciting situation because even better experimental results are expected in the next 1 to 5 years, which might further increase the tension between experiment and theory. I propose a completely different and much more fundamental theoretical approach: lattice Quantum Chromodynamics (QCD). Within this new approach I can reach better accuracies than those of the traditional approach. Furthermore, my innovative approach uses far less experimental inputs, reducing the effects of uncertainties associated with input. The objective of the present application is to show unambiguously that either (a) there is no new force, that the experimental results are actually in agreement with the Standard Model of particle physics or (b) confirm the existence of new physics with a high confidence level. To that end a very large-scale lattice Quantum Chromodynamics approach will be applied using supercomputers to yield the muon's magnetic moment with the unprecedented precision of 10(up-10) level of accuracy. The success of this project will open a new window for high precision lattice Quantum Chromodynamics and put a final word on the two decade old mystery around the muon's magnetic moment.

Recent Publications

All known publications ...
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Conference Presentation (Plenary/Keynote) Giusti, D. (Corresponding author)FZJ*
Status of the HVP contribution to the muon g-2 from lattice
20254th Liverpool Workshop on Muon Precision Physics 2025, MPP2025, LiverpoolLiverpool, UK, 11 Nov 2025 - 13 Nov 20252025-11-112025-11-13 [10.34734/FZJ-2025-04697] OpenAccess Files BibTeX | EndNote: XML, Text | RIS

Conference Presentation (Plenary/Keynote) Giusti, D. (Corresponding author)FZJ*
The HVP contribution to the muon g-2 from the lattice
2025Workshop on Flavor Changing and Conserving Processes, FCCP2025, AnacapriAnacapri, Italy, 29 Sep 2025 - 1 Oct 20252025-09-292025-10-01 BibTeX | EndNote: XML, Text | RIS

Conference Presentation (Invited) Giusti, D. (Corresponding author)FZJ*
The HVP contribution to the lepton anomalous magnetic moments from first principles
2025Workshop on Precision Determinations of the Fine-structure Constant, ALPHA2025, MainzMainz, Germany, 27 Oct 2025 - 31 Oct 20252025-10-272025-10-31 BibTeX | EndNote: XML, Text | RIS

Poster (Invited) Giusti, D. (Corresponding author)FZJ* ; Boccaletti, A. ; Kotov, A.FZJ*
A new staggered action in Lattice QCD
2025NIC Symposium 2025, JülichJülich, Germany, 6 Mar 2025 - 7 Mar 20252025-03-062025-03-07 BibTeX | EndNote: XML, Text | RIS

Habil / Postdoctoral Thesis (Non-german Habil) Giusti, D. (Corresponding author)FZJ*
Hadronic Processes on the Lattice in the Era of Precision Flavor Physics
278 p. (2025)2025 = Habilitationsschrift, Universität Regensburg, 2025 BibTeX | EndNote: XML, Text | RIS

Review/Journal Article Aliberti, R. ; Aoyama, T. ; Balzani, E. ; et al
The anomalous magnetic moment of the muon in the Standard Model: an update
Physics reports 1143, 1 - 158 (2025) [10.1016/j.physrep.2025.08.002]2025 OpenAccess Files BibTeX | EndNote: XML, Text | RIS

Conference Presentation (Invited) Giusti, D. (Corresponding author)FZJ*
Hadronic vacuum polarisation contribution to the muon anomaly from first principles to an accuracy of 4.6 per mil
20249th Symposium on Prospects in the Physics of Discrete Symmetries, DISCRETE 2024, LjubljanaLjubljana, Slovenia, 2 Dec 2024 - 6 Dec 20242024-12-022024-12-06 BibTeX | EndNote: XML, Text | RIS

Talk (non-conference) (Other) Giusti, D. (Corresponding author)FZJ*
Study of radiative leptonic decays from first principles
2024Lattice Coffee Seminar, CERNCERN, Switzerland, 19 Nov 20242024-11-19 BibTeX | EndNote: XML, Text | RIS

Conference Presentation (Other) Giusti, D. (Corresponding author)FZJ*
Status of the HVP contribution to the muon $g - 2$ from lattice
2024III Workshop on Muon Precision Physics, LiverpoolLiverpool, UK, 12 Nov 2024 - 14 Nov 20242024-11-122024-11-14 BibTeX | EndNote: XML, Text | RIS

Conference Presentation (Other) Giusti, D. (Corresponding author)FZJ*
Radiative leptonic decays
2024Isospin-Breaking Effects on Precision Observables in Lattice QCD, MainzMainz, Germany, 22 Jul 2024 - 26 Jul 20242024-07-222024-07-26 BibTeX | EndNote: XML, Text | RIS

All known publications ...
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Datensatz erzeugt am 2023-08-25, letzte Änderung am 2023-08-25

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