Erratum to: MiNNLO: a new method to match NNLO QCD to parton showers.

[This corrects the article DOI: 10.1007/JHEP05(2020)143.].

Next-to-Next-to-Leading Order Event Generation for Top-Quark Pair Production.

The production of top-quark pairs in hadronic collisions is among the most important reactions in modern particle physics phenomenology and constitutes an instrumental avenue to study the properties of the heaviest quark observed in nature. The analysis of this process at the Large Hadron Collider relies heavily on Monte Carlo simulations of the final state events, whose accuracy is challenged by the outstanding precision of experimental measurements. In this Letter we present the first matched computation of top-quark pair production at next-to-next-to-leading order in QCD with all-order radiative corrections as implemented via parton-shower simulations.

Pentafluoroethylated Compounds of Silicon, Germanium and Tin.

In this contribution we present an account on pentafluoroethylated compounds of silicon, germanium and tin. The pronounced electron-withdrawing effect of the pentafluoroethyl group leads to a markedly increased Lewis acidity at the central atom which results in the stabilization of hypervalent complexes, anionic element(II) species as well as remarkable reactivities of element-element and element-hydrogen bonds. By addition to unsaturated C-C bonds or by reaction with organic halides as well as transition-metal complexes the molecules bearing a pentafluoroethyl-element group are readily accessible.

Synthesis and Reactivity of Donor-Stabilized Bis(pentafluoroethyl)stannylene [Sn(C F ) (D) ] (D=THF, DMAP, PMe , [Sn(C F ) ] ).

In this contribution we report on the synthesis of bis(pentafluoroethyl)stannane, H Sn(C F ) . In the reaction with donor molecules a ready elimination of hydrogen and the formation of the corresponding donor-stabilized monomeric bis(pentafluoroethyl)stannylene, Sn(C F ) , becomes apparent. With dependence on the Lewis basicity and steric demand of the donor, varying coordination numbers are realized.

The Dynamic Equilibrium of Hexakis(pentafluoroethyl)distannane Adducts [XSn(C F ) {Sn(C F ) }] (X=Cl, Br, I, Sn(C F ) ).

The tin-tin bond cleavage of hexaorganodistannanes by nucleophiles is a long-known reaction and widely used for stannate formation or stannyl group transfer. Herein, we detail our experiments to provide analytical evidence for the existence of the reasonably stable anionic complexes [XSn(C F ) {Sn(C F ) }] (X=Cl, Br, I, Sn(C F ) ) derived from hexakis(pentafluoroethyl)distannane. NMR investigations at low temperature lend further mechanistic insights.