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Probing the Standard Model to 0.37 ppm with the muon anomalous magnetic moment
/ Lellouch, Laurent (speaker) (CNRS & Aix-Marseille U.)
For the past fifty years, the Standard Model has been hugely successful in describing subatomic phenomena. However, recent measurements of the anomalous magnetic moment of the muon (a_mu) appear to challenge that statement, as they show a significant discrepancy with the reference Standard Model prediction. [...]
2024 - 4529.
Theory Colloquia
External link: Event details
In : Probing the Standard Model to 0.37 ppm with the muon anomalous magnetic moment
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Review of particle physics
/ Particle Data Group Collaboration
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,717 new measurements from 869 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons [...]
2024 - 2382 p.
- Published in : Phys. Rev. D 110 (2024) 030001
Fulltext: PDF;
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10.1093/ptep/ptac097
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Prospects for precise predictions of $a_\mu$ in the Standard Model
/ Colangelo, G. (U. Bern (main)) ; Davier, M. (IJCLab, Orsay) ; El-Khadra, A.X. (Illinois U., Urbana ; Fermilab) ; Hoferichter, M. (U. Bern (main)) ; Lehner, C. (Regensburg U.) ; Lellouch, L. (Marseille, CPT) ; Mibe, T. (KEK, Tsukuba) ; Roberts, B.L. (Boston U.) ; Teubner, T. (Liverpool U., Dept. Math.) ; Wittig, H. (U. Mainz, PRISMA ; Darmstadt, GSI) et al.
We discuss the prospects for improving the precision on the hadronic corrections to the anomalous magnetic moment of the muon, and the plans of the Muon $g-2$ Theory Initiative to update the Standard Model prediction..
arXiv:2203.15810 ; FERMILAB-CONF-22-236-T ; LTH 1303 ; MITP-22-030.
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24.
Fermilab Library Server - eConf - Fulltext - Fulltext
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Leading hadronic contribution to the muon magnetic moment from lattice QCD.
/ Lellouch, Laurent (speaker) (CNRS and Aix-Marseille U.)
Twenty years ago in an experiment at Brookhaven National Laboratory, physicists measured the muon's anomalous magnetic moment, $a_\mu=(g_\mu-2)/2$, with a remarkable precision of 0.54 parts per million. Since then, the standard model prediction for $a_\mu$ has exhibited a discrepancy with experiment of over 3 standard deviations, raising the tantalizing possibility of physical particles or forces as yet undiscovered. [...]
2021 - 5231.
Theory Colloquium
External link: Event details
In : Leading hadronic contribution to the muon magnetic moment from lattice QCD.
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10.1093/ptep/ptaa104
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The anomalous magnetic moment of the muon in the Standard Model
/ Aoyama, T. (KEK, Tsukuba ; Nishina Ctr., RIKEN ; KMI, Nagoya) ; Asmussen, N. (Southampton U.) ; Benayoun, M. (Paris U., VI-VII) ; Bijnens, J. (Lund U.) ; Blum, T. (Connecticut U. ; RIKEN BNL) ; Bruno, M. (CERN) ; Caprini, I. (Bucharest, IFIN-HH) ; Carloni Calame, C.M. (INFN, Pavia) ; Cè, M. (CERN ; Mainz U., Inst. Phys. ; Darmstadt, GSI ; Helmholtz Inst., Mainz) ; Colangelo, G. (U. Bern, AEC) et al.
We review the present status of the Standard Model calculation of the anomalous magnetic moment of the muon. This is performed in a perturbative expansion in the fine-structure constant $\alpha$ and is broken down into pure QED, electroweak, and hadronic contributions. [...]
arXiv:2006.04822; FERMILAB-PUB-20-207-T; INT-PUB-20-021; KEK Preprint 2020-5,
MITP/20-028; KEK Preprint 2020-5, MITP/20-028; CERN-TH-2020-075; IFT-UAM/CSIC-20-74; LMU-ASC 18/20; LTH 1234,
LU TP 20-20; LTH 1234, LU TP 20-20; MAN/HEP/2020/003; PSI-PR-20-06; UWThPh 2020-14; ZU-TH 18/20.-
Geneva : CERN, 2020-12-03 - 166 p.
- Published in : Phys. Rep. 887 (2020) 1-166
Fulltext: 2006.04822 - PDF; fermilab-pub-20-207-t - PDF; Fulltext from Publisher: PDF; External links: Fermilab News article; Fermilab Library Server (fulltext available)
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Ab initio calculation of the neutron-proton mass difference
/ Lellouch, Laurent (speaker) (Centre de Physique Théorique, CNRS and Aix-Marseille U.)
The existence and stability of atoms relies on the fact that neutrons are more massive than protons. The mass difference is only 0.14% of the average and has significant astrophysical and cosmological implications. [...]
2015 - 4088.
TH Theoretical Seminar
External link: Event details
In : Ab initio calculation of the neutron-proton mass difference
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2009 Les Houches Summer School, Session XCIII - Ecole de Physique des Houches, Session XCIII Lecture Notes of the Les Houches Summer School : Volume 93, August 2009 Modern Perspectives in Lattice QCD : Quantum Field Theory and High Performance Computing
3 - 28 Aug 2009
- Les Houches, France
/ Lellouch, L (ed.); Sommer, R (ed.); Svetitsky, B (ed.); Vladikas, A (ed.); Cugliandolo, L F (ed.)
Oxford : Oxford univ. press, 2011 - 729 p.
e-proceedings
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Review of lattice results concerning low energy particle physics
/ Colangelo, Gilberto (Bern U.) ; Durr, Stephan (Wuppertal U. ; IAS, Julich) ; Juttner, Andreas (CERN) ; Lellouch, Laurent (Marseille, CPT) ; Leutwyler, Heinrich (Bern U.) ; Lubicz, Vittorio (Rome III U. ; INFN, Rome3) ; Necco, Silvia (CERN) ; Sachrajda, Christopher T. (Southampton U.) ; Simula, Silvano (INFN, Rome3) ; Vladikas, Anastassios (INFN, Rome2 ; Rome U., Tor Vergata) et al.
We review lattice results relevant for pion and kaon physics with the aim of making them easily accessible to the particle physics community. Specifically, we review the determination of the light-quark masses, the form factor f_+(0), relevant for the semileptonic K -> pi transition at zero momentum transfer as well as the ratio f_K/f_pi of decay constants and discuss the consequences for the elements V_{us} and V_{ud} of the CKM matrix. [...]
arXiv:1011.4408; CERN-PH-TH-2010-218; CPT-P056-2010; SHEP-1039; CERN-PH-TH-2010-218; CPT-P056-2010; SHEP-1039.-
2011 - 126 p.
- Published in : Eur. Phys. J. C 71 (2011) 1695
Fulltext: PDF; External link: Preprint
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