6533b853fe1ef96bd12ad730
RESEARCH PRODUCT
A non-perturbative study of massive gauge theories
Pilar HernándezMichele Della Mortesubject
High Energy Physics - TheoryNuclear and High Energy PhysicsHiggs PhysicsHigh Energy Physics::Latticehep-latFOS: Physical sciences01 natural sciencesTheoretical physicsHigh Energy Physics - LatticeHigh Energy Physics - Phenomenology (hep-ph)Lattice (order)0103 physical sciencesEffective field theoryGauge theory010306 general physicsConserved currentScalingLattice Gauge Field TheoriesPhysics010308 nuclear & particles physicshep-thHigh Energy Physics - Lattice (hep-lat)Físicahep-phQuantum numberHigh Energy Physics - PhenomenologyChiral modelHigh Energy Physics - Theory (hep-th)Gauge SymmetryNon-perturbativeSigma Modelsdescription
We consider a non-perturbative formulation of an SU(2) massive gauge theory on a space-time lattice, which is also a discretised gauged non-linear chiral model. The lattice model is shown to have an exactly conserved global SU(2) symmetry. If a scaling region for the lattice model exists and the lightest degrees of freedom are spin one vector particles with the same quantum numbers as the conserved current, we argue that the most general effective theory describing their low-energy dynamics must be a massive gauge theory. We present results of a exploratory numerical simulation of the model and find indications for the presence of a scaling region where both a triplet vector and a scalar remain light.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-09-12 |