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The influence of gauge field smearing on discretisation effects
Andreas Risch, Stefan Schaefer, Rainer Sommer
When designing lattice actions, gauge field smearing is frequently used to define the lattice Dirac operator. Since the smearing procedure removes effects of ultraviolet fluctuatio…
The hadronic running of the electromagnetic coupling and electroweak mixing angle
Teseo San José, Hartmut Wittig, Marco Cè +7
We present results for the hadronic running of the electromagnetic coupling and the weak mixing angle from simulations of lattice QCD with flavours of -improved Wil…
Lattice calculation of the hadronic leading order contribution to the muon
H. Wittig, A. Gérardin, Marco Cè +9
The persistent discrepancy of about 3.5 standard deviations between the experimental measurement and the Standard Model prediction for the muon anomalous magnetic moment, , is…
Leading isospin breaking effects in the hadronic vacuum polarisation with open boundaries
Andreas Risch, Hartmut Wittig
We discuss leading isospin breaking effects in the hadronic vacuum polarisation required for the investigation of the hadronic contribution to . The calculation proceeds b…
The hadronic contribution to the running of the electromagnetic coupling and the electroweak mixing angle
Marco Cè, Teseo San José, Antoine Gérardin +6
The electromagnetic coupling and the electroweak mixing angle are parameters of the Standard Model (SM) that enter precision SM tests and play a fundamental rô…
Towards leading isospin breaking effects in mesonic masses with open boundaries
Andreas Risch, Hartmut Wittig
We present an exploratory study of leading isospin breaking effects in mesonic masses using improved Wilson fermions with open boundaries. Isospin symmetry is explicitly bro…