129 citations · 242 across the 9 of their papers we have counts for
4 papers · 1 filter
Poincaré invariance in NRQCD and pNRQCD revisited
Matthias Berwein, Nora Brambilla, Sungmin Hwang +1
We investigate how fields transform under the Poincaré group in nonrelativistic effective field theories of QCD. In constructing these transformations, we rely only on symmetries a…
Power Divergences in Overlapping Wilson Lines
Matthias Berwein
We discuss the divergence structure of Wilson line operators with partially overlapping segments on the basis of the cyclic Wilson loop as an explicit example. The generalized expo…
Ultraviolet divergences in the cyclic Wilson loop and their renormalization
Matthias Berwein
We discuss the cyclic Wilson loop, i.e. a rectangular Wilson loop that spans the entire compactified time axis in the imaginary time formalism. The result of a perturbative calcula…
Renormalization of the cyclic Wilson loop
Matthias Berwein, Nora Brambilla, Jacopo Ghiglieri +1
In finite-temperature field theory, the cyclic Wilson loop is defined as a rectangular Wilson loop spanning the whole compactified time direction. In a generic non-abelian gauge th…