Speaker
Marcus Petschlies
(Humboldt-Universitaet zu Berlin)
Description
The strong coupling constant and the charm quark mass are two fundamental parameters of the Standard Model.
The precision of their determination has been continuously improved in the past using both perturbative and
non-perturbative methods and most recently combinations thereof.
I report on a partially quenched investigation of charm current-current correlators using two flavours
of dynamical twisted mass fermions. By matching non-perturbative results for moments of (pseudo-)scalar and
(axial-)vector current correlators to continuum perturbation theory the strong coupling and the charm quark mass
are extracted.
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Primary author
Marcus Petschlies
(Humboldt-Universitaet zu Berlin)
