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Fitting Parton Distribution Data with Multiplicative Normalization Uncertainties
The NNPDF Collaboration, Richard D. Ball, Luigi Del Debbio +5
We consider the generic problem of performing a global fit to many independent data sets each with a different overall multiplicative normalization uncertainty. We show that the me…
Running of the coupling and quark mass in SU(2) with two adjoint fermions
Francis Bursa, Luigi Del Debbio, Liam Keegan +2
We simulate SU(2) gauge theory with two massless Dirac fermions in the adjoint representation. We calculate the running of the Schroedinger Functional coupling and the renormalised…
Mass anomalous dimension in SU(2) with two adjoint fermions
Francis Bursa, Luigi Del Debbio, Liam Keegan +2
We study SU(2) lattice gauge theory with two flavours of Dirac fermions in the adjoint representation. We measure the running of the coupling in the Schroedinger Functional (SF) sc…
The S Parameter in QCD from Domain Wall Fermions
Peter A. Boyle, Luigi Del Debbio, Jan Wennekers +1
We have computed the SU(2) Low Energy Constant l5 and the mass splitting between charged and neutral pions from a lattice QCD simulation of nf = 2 + 1 flavors of Domain Wall Fermio…