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The anomalous magnetic moment of the muon in the Standard Model: an update
/ Aliberti, R. (Mainz U., Inst. Phys. ; U. Mainz, PRISMA) ; Aoyama, T. (Tokyo U., ISSP) ; Balzani, E. (INFN, Padua ; Padua U.) ; Bashir, A. (IFM-UMSNH, Michoacan ; Escuela Poli. Sup. U., Huelva) ; Benton, G. (Illinois U., Urbana) ; Bijnens, J. (Lund U.) ; Biloshytskyi, V. (Mainz U., Inst. Phys. ; U. Mainz, PRISMA) ; Blum, T. (Connecticut U. ; RIKEN BNL) ; Boito, D. (Sao Paulo U., Sao Carlos) ; Bruno, M. (Milan Bicocca U. ; INFN, Milan Bicocca) et al.
We present the current Standard Model (SM) prediction for the muon anomalous magnetic moment, $a_μ$, updating the first White Paper (WP20) [1]. The pure QED and electroweak contributions have been further consolidated, while hadronic contributions continue to be responsible for the bulk of the uncertainty of the SM prediction. [...]
arXiv:2505.21476; CERN-TH-2025-101; FERMILAB-PUB-25-0344-T; INT-PUB-25-015; IPARCOS-UCM-25-029; KEK Preprint 2025-22; LTH 1403; MITP-25-037; UWThPh 2025-15; UWThPh
2025-15; ZU-TH 37/25; IPARCOS-UCM-25-029.-
2025-09-10 - 188 p.
- Published in : Phys. Rep. 1143 (2025) 1-158
Fulltext: 2505.21476 - PDF; dc089d0865516c2a08ade9cf28ac37b1 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
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The long-distance window of the hadronic vacuum polarization for the muon g-2
/ RBC Collaboration
We provide the first ab-initio calculation of the Euclidean long-distance window of the isospin symmetric light-quark connected contribution to the hadronic vacuum polarization for the muon $g-2$ and find $a_\mu^{\rm LD,iso,conn,ud} = 411.4(4.3)(2.4) \times 10^{-10}$. We also provide the currently most precise calculation of the total isospin symmetric light-quark connected contribution, $a_\mu^{\rm iso,conn,ud} = 666.2(4.3)(2.5) \times 10^{-10}$, which is more than 4$\sigma$ larger compared to the data-driven estimates of Boito et al. [...]
arXiv:2410.20590; CERN-TH-2024-182.-
2025-05-19 - 12 p.
- Published in : Phys. Rev. Lett. 134 (2025) 201901
Fulltext: PDF;
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Update of Euclidean windows of the hadronic vacuum polarization
/ RBC Collaboration
We compute the standard Euclidean window of the hadronic vacuum polarization using multiple independent blinded analyses. We improve the continuum and infinite-volume extrapolations of the dominant quark-connected light-quark isospin-symmetric contribution and address additional sub-leading systematic effects from sea-charm quarks and residual chiral-symmetry breaking from first principles. [...]
arXiv:2301.08696; CERN-TH-2023-010.-
2023-09-01 - 24 p.
- Published in : Phys. Rev. D 108 (2023) 054507
Fulltext: 2301.08696 - PDF; Publication - PDF;
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Phase Transitions in Particle Physics - Results and Perspectives from Lattice Quantum Chromo-Dynamics
/ Aarts, Gert (Swansea U. ; ECT, Trento ; Fond. Bruno Kessler, Trento) ; Aichelin, Joerg (SUBATECH, Nantes) ; Allton, Chris (Swansea U.) ; Athenodorou, Andreas (INFN, Pisa ; Cyprus Inst.) ; Bachtis, Dimitrios (Swansea U., Math. Dept.) ; Bonanno, Claudio (INFN, Florence ; Madrid, IFT ; Madrid, Autonoma U.) ; Brambilla, Nora (Munich, Tech. U.) ; Bratkovskaya, Elena (Darmstadt, GSI ; Frankfurt U. ; Helmholtz Res. Acad. Hesse for FAIR) ; Bruno, Mattia (Milan Bicocca U. ; INFN, Milan Bicocca) ; Caselle, Michele (Turin U.) et al.
Phase transitions in a non-perturbative regime can be studied by ab initio Lattice Field Theory methods. The status and future research directions for LFT investigations of Quantum Chromo-Dynamics under extreme conditions are reviewed, including properties of hadrons and of the hypothesized QCD axion as inferred from QCD topology in different phases. [...]
arXiv:2301.04382.-
2023-07-20 - 94 p.
- Published in : Prog. Part. Nucl. Phys. 133 (2023) 104070
Fulltext: PDF;
In : Axions across boundaries between Particle Physics, Astrophysics, Cosmology and forefront Detection Technologies, Florence, Italy, 26 Apr - 9 Jun 2023
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Hadronic observables from master-field simulations
/ Cè, Marco (Bern U.) ; Bruno, Mattia (Milan Bicocca U. ; INFN, Milan Bicocca) ; Bulava, John (DESY, Zeuthen) ; Francis, Anthony (NYCU, Hsinchu) ; Fritzsch, Patrick (Trinity Coll., Dublin ; Hamilton Math. Inst., Dublin) ; Green, Jeremy R. (DESY, Zeuthen) ; Hansen, Maxwell T. (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Rago, Antonio (Southern Denmark U., CP3-Origins ; CERN)
Substantial progress has been made recently in the generation of master-field ensembles. This has to be paired with efficient techniques to compute observables on gauge field configurations with a large volume. [...]
arXiv:2301.05156; DESY-22-207; CERN-TH-2022-215.-
2023-01-27 - 10 p.
- Published in : PoS LATTICE2022 (2023) 052
Fulltext: document - PDF; 2301.05156 - PDF;
In : 39th International Symposium on Lattice Field Theory (Lattice 2022), Bonn, Germany, 8 - 13 Aug 2022, pp.052
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Approaching the master-field: Hadronic observables in large volumes
/ Cè, Marco (CERN) ; Bruno, Mattia (Milan Bicocca U. ; INFN, Milan Bicocca) ; Bulava, John (DESY, Zeuthen) ; Francis, Anthony (CERN ; Bern U.) ; Fritzsch, Patrick (Trinity Coll., Dublin) ; Green, Jeremy R. (CERN ; Trinity Coll., Dublin) ; Hansen, Maxwell T. (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Rago, Antonio (CERN ; Plymouth U.)
The master-field approach to lattice QCD envisions performing calculations on a small number of large-volume gauge-field configurations. Substantial progress has been made recently in the generation of such fields, and this must be joined with measurement strategies that take advantage of the large volume. [...]
arXiv:2110.15375; CERN-TH-2021-164.-
2022-05-16 - 9 p.
- Published in : PoS: LATTICE2021 (2022) , pp. 383
Fulltext: document - PDF; 2110.15375 - PDF;
In : 38th International Symposium on Lattice Field Theory, Online, 26 - 30 Jul 2021, pp.383
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Lattice determination of $I= 0$ and 2 $\pi\pi$ scattering phase shifts with a physical pion mass
/ RBC Collaboration
Phase shifts for $s$-wave $\pi\pi$ scattering in both the $I=0$ and $I=2$ channels are determined from a lattice QCD calculation performed on 741 gauge configurations obeying G-parity boundary conditions with a physical pion mass and lattice size of $32^3\times 64$. These results support our recent study of direct CP violation in $K\to\pi\pi$ decay \cite{Abbott:2020hxn}, improving our earlier 2015 calculation \cite{Bai:2015nea}. [...]
arXiv:2103.15131; CERN-TH-2021-039.-
2021-12-01 - 88 p.
- Published in : Phys. Rev. D 104 (2021) 114506
Fulltext: 2103.15131 - PDF; PhysRevD.104.114506 - PDF;
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