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Numerical evaluation of loop integrals
Charalampos Anastasiou, Alejandro Daleo
We present a new method for the numerical evaluation of arbitrary loop integrals in dimensional regularization. We first derive Mellin-Barnes integral representations and apply an…
The gluon-fusion uncertainty in Higgs coupling extractions
Charalampos Anastasiou, Kirill Melnikov, Frank Petriello
We point out that the QCD corrections to the gluon-fusion Higgs boson production cross section at the LHC are very similar to the corrections to the Higgs decay rate into two gluon…
The electron energy spectrum in muon decay through O(alpha^2)
Charalampos Anastasiou, Kirill Melnikov, Frank Petriello
We compute the complete O(alpha^2) QED corrections to the electron energy spectrum in unpolarized muon decay, including the full dependence on the electron mass. Our calculation re…
Fully differential Higgs boson production and the di-photon signal through next-to-next-to-leading order
Charalampos Anastasiou, Kirill Melnikov, Frank Petriello
We describe a calculation of the fully differential cross section for Higgs boson production in the gluon fusion channel through next-to-next-to-leading order (NNLO) in perturbativ…