scholarly journals Hadronic Light-by-Light Scattering Contribution to the Muon Anomalous Magnetic Moment from Lattice QCD

2020 ◽  
Vol 124 (13) ◽  
Author(s):  
Thomas Blum ◽  
Norman Christ ◽  
Masashi Hayakawa ◽  
Taku Izubuchi ◽  
Luchang Jin ◽  
...  
Keyword(s):  
Light Scattering ◽  
Lattice Qcd ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Muon Anomalous Magnetic Moment ◽  
Scattering Contribution

scholarly journals Hadronic light-by-light scattering in the muon g − 2

2019 ◽  
Vol 218 ◽  
pp. 01001
Author(s):  
Andreas Nyffeler
Keyword(s):  
Light Scattering ◽  
Lattice Qcd ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Current Status ◽  
Reliable Estimate ◽  
Model Calculations ◽  
Recent Developments ◽  
Model Independent ◽  
Scattering Contribution

We briefly review the current status of the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon. Based on various model calculations in the literature, we obtain the estimate $ \mathop a\nolimits_\mu ^{HLbL} = (102 \pm 39) \times \mathop {10}\nolimits^{ - 11} $. Recent developments including more model-independent approaches using dispersion relations and lattice QCD, that could lead to a more reliable estimate, are also discussed.

scholarly journals THE MUON ANOMALOUS MAGNETIC MOMENT, A VIEW FROM THE LATTICE

2014 ◽  
Vol 35 ◽  
pp. 1460418 ◽  
Author(s):  
CHRISTOPHER AUBIN ◽  
THOMAS BLUM ◽  
MAARTEN GOLTERMAN ◽  
KIM MALTMAN ◽  
SANTIAGO PERIS
Keyword(s):  
Lattice Qcd ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Vacuum Polarization ◽  
Dominant Contribution ◽  
Muon Anomalous Magnetic Moment ◽  
Accurate Evaluation

We review some of the issues that arise in attempts to compute the hadronic corrections to the muon anomalous magnetic moment using Lattice QCD. We concentrate on the dominant contribution, which requires an accurate evaluation of the hadronic vacuum polarization.

scholarly journals Recent progress in hadronic light-by-light scattering

2022 ◽  
Vol 258 ◽  
pp. 06004
Author(s):  
Martin Hoferichter
Keyword(s):  
Light Scattering ◽  
Lattice Qcd ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Recent Progress ◽  
Data Driven ◽  
Significant Progress

In recent years, significant progress in the calculation of the HLbL contribution to the anomalous magnetic moment of the muon has been achieved both with data-driven methods and in lattice QCD. In these proceedings I will discuss current developments aimed at controlling HLbL scattering at the level of 10%, as required for the final precision of the Fermilab E989 experiment.

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