scholarly journals Leading order hadronic contribution to g-2 from lattice QCD

2011 ◽  
Author(s):  
Dru Renner
2015 ◽  
Vol 2015 ◽  
pp. 1-4
Author(s):  
C. A. Dominguez ◽  
M. Loewe ◽  
M. Lushozi

The renormalizable Kroll-Lee-Zumino field theory of pions and a neutral rho-meson is used to determine the scalar form factor of the pion in the space-like region at next-to-leading order. Perturbative calculations in this framework are parameter-free, as the masses and the rho-pion-pion coupling are known from experiment. Results compare favorably with lattice QCD calculations.


2018 ◽  
Vol 166 ◽  
pp. 00022 ◽  
Author(s):  
Fred Jegerlehner

I present a status report of the hadronic vacuum polarization effects for the muon g–2, to be considered as an update of [1]. The update concerns recent new inclusive R measurements from KEDR in the energy range 1.84 to 3.72 GeV. For the leading order contributions I find [see formula in PDF] based on e+e- data [incl. τ data], [see formula in PDF] (NLO) and [see formula in PDF] (NNLO). Collecting recent progress in the hadronic light-by-light scattering I adopt π0, η, η' [95 ± 12] + axial-vector [8 ± 3] + scalar [-6 ± 1] + π, K loops [-20 ± 5] + quark loops [22 ± 4] + tensor [1 ± 0] + NLO [3 ± 2] which yields [see formula in PDF]. With these updates I find [see formula in PDF] a 4.1 σ deviation. Recent lattice QCD results and future prospects to improve hadronic contributions are discussed.


2019 ◽  
Vol 100 (1) ◽  
Author(s):  
Antoine Gérardin ◽  
Marco Cè ◽  
Georg von Hippel ◽  
Ben Hörz ◽  
Harvey B. Meyer ◽  
...  

1994 ◽  
Vol 431 (3) ◽  
pp. 667-685 ◽  
Author(s):  
C.R. Allton ◽  
M. Ciuchini ◽  
M. Crisafulli ◽  
E. Franco ◽  
V. Lubicz ◽  
...  

2004 ◽  
Vol 688 (1-2) ◽  
pp. 135-164 ◽  
Author(s):  
M. Göckeler ◽  
R. Horsley ◽  
W. Kürzinger ◽  
D. Pleiter ◽  
P.E.L. Rakow ◽  
...  

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