Speaker
Dr
Finn M. Stokes
(Forschungszentrum Jülich GmbH)
Description
The leading hadronic vacuum polarisation contribution to $(g-2)_\mu$
was recently determined by the Budapest-Marseille-Wuppertal
collaboration to sub-percent precision, providing for the first
time an ab-initio calculation of this quantity with errors comparable
to phenomenological determinations.
To reach this unprecedented level of precision, a number of
critical issues needed to be addressed. One such issue was
the significant finite-size effects arising from the two-pion
physics that dominates the hadronic vacuum polarisation.
In this talk we describe how these finite-size effects were
addressed through a combination of dedicated lattice simulations,
chiral perturbation theory, and phenomenological models.
Primary author
Dr
Finn M. Stokes
(Forschungszentrum Jülich GmbH)
