publication . Preprint . Article . 2008

Is the ground state of Yang-Mills theory Coulombic?

Kurt Langfeld;
Open Access English
  • Published: 18 Aug 2008
Abstract
We study trial states modelling the heavy quark-antiquark ground state in SU(2) Yang-Mills theory. A state describing the flux tube between quarks as a thin string of glue is found to be a poor description of the continuum ground state; the infinitesimal thickness of the string leads to UV artifacts which suppress the overlap with the ground state. Contrastingly, a state which surrounds the quarks with non-abelian Coulomb fields is found to have a good overlap with the ground state for all charge separations. In fact, the overlap increases as the lattice regulator is removed. This opens up the possibility that the Coulomb state is the true ground state in the co...
Subjects
arXiv: High Energy Physics::LatticeHigh Energy Physics::Phenomenology
free text keywords: High Energy Physics - Lattice, High Energy Physics - Phenomenology, High Energy Physics - Theory, Nuclear and High Energy Physics, Quark, Continuum (design consultancy), Particle physics, Quantum mechanics, Lattice (order), Gluon, Physics, Coulomb, Flux tube, Ground state, Quantum electrodynamics, Yang–Mills theory
Related Organizations
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publication . Preprint . Article . 2008

Is the ground state of Yang-Mills theory Coulombic?

Kurt Langfeld;