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6 papers · 2 filters
Testing the mechanism of lepton compositness
Vincenzo Afferrante, Axel Maas, René Sondenheimer +1
Strict gauge invariance requires that physical left-handed leptons are actually bound states of the elementary left-handed lepton doublet and the Higgs field within the standard mo…
Renormalization of the energy-momentum tensor in three-dimensional scalar theories using the Wilson flow
Luigi Del Debbio, Elizabeth Dobson, Andreas Jüttner +6
A nonperturbative determination of the energy-momentum tensor is essential for understanding the physics of strongly coupled systems. The ability of the Wilson flow to eliminate di…
A finite box as a tool to distinguish free quarks from confinement at high temperatures
L. Ya. Glozman, C. B. Lang
Above the pseudocritical temperature T_c of chiral symmetry restoration a chiral spin symmetry (a symmetry of the color charge and of electric confinement) emerges in QCD. This imp…
More on the three-gluon vertex in SU(2) Yang-Mills theory in three and four dimensions
Axel Maas, Milan Vujinović
The three-gluon vertex has been found to be a vital ingredient in non-perturbative functional approaches. We present an updated lattice calculation of it in various kinematical con…
Density of states approach for lattice gauge theory with a -term
Christof Gattringer, Oliver Orasch
We discuss a new strategy for treating the complex action problem of lattice field theories with a -term based on density of states (DoS) methods. The key ingredient is to use o…
A composite massless vector boson
Vincenzo Afferrante, Axel Maas, Pascal Törek
In a non-perturbative gauge-invariant formulation of grand-unified theories all low energy vector states need to be composite with respect to the high-scale gauge group, including…