TY  - EJOUR
AU  - Boccaletti, A.
AU  - Borsanyi, Sz.
AU  - Davier, M.
AU  - Fodor, Z.
AU  - Frech, F.
AU  - Gerardin, A.
AU  - Giusti, D.
AU  - Kotov, A. Yu.
AU  - Lellouch, L.
AU  - Lippert, Th.
AU  - Lupo, A.
AU  - Malaescu, B.
AU  - Mutzel, S.
AU  - Portelli, A.
AU  - Risch, A.
AU  - Sjo, M.
AU  - Stokes, F.
AU  - Szabo, K. K.
AU  - Toth, B. C.
AU  - Wang, G.
AU  - Zhang, Z.
TI  - High precision calculation of the hadronic vacuum polarisation contribution to the muon anomaly
IS  - arXiv:2407.10913
PB  - arXiv
M1  - FZJ-2024-06495
M1  - arXiv:2407.10913
SP  - 55p.
PY  - 2024
AB  - We present a new lattice QCD calculation of the leading order hadronic vacuum polarization contribution to the muon anomalous magnetic moment $a_\mu$. We reduce uncertainties compared to our earlier computation by $40\%$, arXiv:2002.12347. We perform simulations on finer lattices allowing for an even more accurate continuum extrapolation. We also include a small, long-distance contribution obtained using input from experiments in a low-energy regime where they all agree. Combined with other standard model contributions our result leads to a prediction that differs from the measurement of $a_\mu$ by only 0.9 standard deviations. This provides a remarkable validation of the standard model to 0.37ppm.
KW  - High Energy Physics - Lattice (hep-lat) (Other)
KW  - High Energy Physics - Phenomenology (hep-ph) (Other)
KW  - High Energy Physics - Theory (hep-th) (Other)
KW  - FOS: Physical sciences (Other)
LB  - PUB:(DE-HGF)25
UR  - https://juser.fz-juelich.de/record/1033615
ER  -