5 papers
Universal Two-Loop Current--Current Renormalization of Four-Fermion Operators
Jason Aebischer, Sudeepan Datta, Pol Morell +2
The complete one- and two-loop gauge and scalar current--current contributions to the running of arbitrary dimension-six four-fermion operators are reported. The results are obtain…
Inclusive Charmless Non-Leptonic B Decays at NLO within and beyond the Standard Model
Stefan Meiser, Pol Morell, Angel Picazo +1
We calculate the full set of BSM contributions to the inclusive non-leptonic -meson lifetime from charmless final states within the framework of the Weak Effective Theory up to…
Constraints on lepton-flavor mixing with third-generation new physics
Sebastiano Covone, Pol Morell, Arianna Tinari
We study the implications of an approximate flavor symmetry at the TeV scale, under the assumption of new physics predominantly coupled to the third-generation fermions, f…
Two-Loop Anomalous Dimensions in the LEFT: Dimension-Six Four-Fermion Operators in NDR
Jason Aebischer, Pol Morell, Marko Pesut +1
We derive the complete set of two-loop anomalous dimensions describing the mixing of four-fermion operators in the Low Energy Effective Field Theory (LEFT). The calculation is perf…
On the two-loop penguin contributions to the Anomalous Dimensions of four-quark operators
Pol Morell, Javier Virto
We revisit the Next-to-Leading Order (two-loop) contributions to the Anomalous Dimensions of four-quark operators in QCD. We devise a test for anomalous dimensions, that w…