174 citations · 427 across the 6 of their papers we have counts for
6 papers
Two-Loop Threshold Singularities, Unstable Particles and Complex Masses
S. Actis, G. Passarino, C. Sturm +1
The effect of threshold singularities induced by unstable particles on two-loop observables is investigated and it is shown how to cure them working in the complex-mass scheme. The…
New Results in Four and Five Loop QED calculations
P. A. Baikov, K. G. Chetyrkin, C. Sturm
We report on two recent multiloop results in QED: (i) the four-loop corrections to the conversion relations between the QED charge renormalized in the on-shell and MS-bar schemes;…
High-Precision Charm-Quark Mass and QCD Coupling from Current-Current Correlators in Lattice and Continuum QCD
I. Allison, E. Dalgic, C. T. H. Davies +12
We use lattice QCD simulations, with MILC gluon configurations and HISQ c-quark propagators, to make very precise determinations of moments of charm-quark pseudoscalar, vector and…
Neutron star versus heavy-ion data: is the nuclear equation of state hard or soft?
Irina Sagert, Mirjam Wietoska, Jurgen Schaffner-Bielich +1
Recent astrophysical observations of neutron stars and heavy-ion data are confronted with our present understanding of the equation of state of dense hadronic matter. Emphasis is p…
Complete Two-Loop Corrections to H -> gamma gamma
Giampiero Passarino, Christian Sturm, Sandro Uccirati
In this paper the complete two-loop corrections to the Higgs-boson decay, H -> gamma gamma, are presented. The evaluations of both QCD and electroweak corrections are based on a nu…
Heavy Quark Masses from Sum Rules in Four-Loop Approximation
Johann H. Kuehn, Matthias Steinhauser, Christian Sturm
New data for the total cross section in the charm and bottom threshold region are combined with an improved theoretical analysis, which includes recent four…