Cross-sections for H production with the top quark Mass
Andrej Saibel (Deutsches Elektronen Synchrotron, Hamburg, Germany)
; Sven-Olaf Moch (II. Institut für Theoretische Physik, Universität Hamburg, Hamburg, Germany); Maria Aldaya Martin (Deutsches Elektronen Synchrotron, Hamburg, Germany)
We study the impact of the top quark mass renormalized in the ‾MS scheme on the tˉtH production cross-sections as an alternative to theory predictions with the conventionally used pole mass scheme. The differential cross-sections at next-to-leading order in perturbative QCD with stable top quarks show a moderate decrease in scale uncertainties for the ‾MS mass renormalization scheme compared to the on-shell one. The shape of the differential distributions is not affected much, the largest differences being observed in the invariant mass distributions of the tˉt and the tˉtH systems.