The anomalous magnetic moment of the muon in the Standard Model: an update

2025/05/27 by R. Aliberti, Tatsumi Aoyama, Aliberti, R. +583 · 17 voices · 31 citations
Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Black Holes and Theoretical Physics

paper · pdf · doi:10.1016/j.physrep.2025.08.002

Abstract

Parallel talk presented at the XXI International Workshop on Neutrino Telescopes - Padova 29 September - 3 October 2025 (https://agenda.infn.it/event/44606/)

Citations

• Review of Particle Physics

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Discussions

• ... tatsächlich zu den gemessenen Werten passt! Die lange diskutierte Diskrepanz gibt es gar nicht! Theorie und Experiment stimmen überein! Das zeigt ein Paper, das vor wenigen Tagen auf arxiv veröffe [bsky, 188 points, 2 comments]
• 💣 The Muon g-2 theory initiative dropped their update. Bottom line: the g-2 anomaly is gone. arxiv.org/abs/2505.21476 🧪⚛️ [bsky, 90 points, 10 comments]
• The anomalous magnetic moment of the muon in the Standard Model: an update [hn, 36 points, 31 comments]
• Way back in my first year of college, I heard a talk about the Brookhaven discrepancy in the muon g-2 and how discovery of supersymmetry was probably right around the corner. Now the experts say the S [bsky, 8 points, 0 comments]
• ... in a white paper posted here [2/3] arxiv.org/abs/2505.21476 [bsky, 5 points, 1 comments]
• #arXiv #GoodbyeTo The anomalous magnetic moment of the muon in the Standard Model: an update arxiv.org/abs/2505.21476 "this update has resulted in a major upward shift of the total SM prediction. Ther [bsky, 3 points, 1 comments]
• The anomalous magnetic moment of the muon in the Standard Model: an update arxiv.org/abs/2505.21476 [bsky, 3 points, 0 comments]
• 페르미랩 결과가 나오기 전 새로운 뮤온 이상자기모먼트 계산 결과가 나왔고 문제가 되었던 QCD 기여분을 전부 격자 계산으로 바꿨더니 현 실험값과 일치하는 값이 나온 모양. arxiv.org/abs/2505.21476 첫 칸은 (전자+반전자->파이온 실험값을 기반으로 유추한 QCD 기여분을 택한) 2020년 계산, 마지막 칸은 격자 QCD 계산값으로 바꿔서 [bsky, 1 points, 1 comments]
• Here is a link to the recent theoretical result for g-2. arxiv.org/abs/2505.21476. [bsky, 1 points, 0 comments]
• # arXiv # GoodbyeTo The anomalous magnetic moment of the muon in the Standard Model: an update https:// arxiv.org/abs/2505.21476 "this update has resulted in a major upward shift of the total SM predi [mastodon, 1 points, 0 comments]
• Moment magnétique anormal du muon : il n'existe pas de tension entre la prédiction théorique du Modèle Standard de la physique des particules et les derniers résultats expérimentaux. doi.org/10.4855 [bsky, 0 points, 1 comments]
• "...there is no tension between the SM and experiment at the current level of precision." [bsky, 0 points, 1 comments]
• The anomalous magnetic moment of the muon in the Standard Model - an update: arxiv.org/abs/2505.21476 ("there is no tension between the SM and experiment at the current level of precision") -> nachric [bsky, 0 points, 0 comments]
• Update of the muon g-2 White Paper out at arxiv.org/pdf/2505.21476. Paradigm change: - Lattice-based HVP determination now taken as consensus SM prediction. - Conundrum in HVP determinations based on [bsky, 0 points, 2 comments]
• "The resolution of the tensions among data-driven dispersive evaluations of the LO HVP contribution will be a key element in this endeavor." A less interesting problem but still a problem to be sure. [bsky, 0 points, 0 comments]
• The anomalous magnetic moment of the muon in the Standard Model: an update https://arxiv.org/abs/2505.21476 (https://news.ycombinator.com/item?id=44120224) [bsky, 0 points, 0 comments]
• I think it's a reference to the gap between data-driven theory (CMD-3) and lattice QCD calculations for HVP? The consensus from the Theory Initiative seems to be to ignore the data-driven stuff though [bsky, 0 points, 1 comments]

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