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Using the automation program GoSam, fully differential NLO corrections were obtained for the rare decay of the muon $muto e ubar u ee$. This process is an important Standard Model background to searches of the Mu3e collaboration for lepton-flavour violation, as it becomes indistinguishable from the signal $muto 3e$ if the neutrinos carry little energy. With our NLO program we are able to compute the branching ratio as well as custom-tailored observables for the experiment. With minor modifications, related decays of the tau can also be computed.
We write down the four-dimensional fully differential decay distribution for the top quark decay $t to Wb to ell u b$. We discuss how its eight physical parameters can be measured, either with a global fit or with the use of selected one-dimensional
Accessing the polarization of weak bosons provides an important probe for the mechanism of electroweak symmetry breaking. Relying on the double-pole approximation and on the separation of polarizations at the amplitude level, we study WZ production a
I present a new and reliable method to test the numerical accuracy of NLO calculations based on modern OPP/Generalized Unitarity techniques. A convenient solution to rescue most of the detected numerically inaccurate points is also proposed.
We present results at NLO QCD for hadronic production and decay of top quark pairs, taking into account t tbar spin correlations.
We obtain predictions accurate at the next-to-leading order in QCD for the production of a generic spin-two particle in the most relevant channels at the LHC: production in association with coloured particles (inclusive, one jet, two jets and $tbar t