5 papers
The Similarity Renormalization Group
Sergio Szpigel, Robert J. Perry
Quantum field theories require a cutoff to regulate divergences that result from local interactions, and yet physical results can not depend on the value of this cutoff. The renorm…
Light-Front Quantum Chromodynamics
Robert J. Perry
Light-front quantum chromodynamics may lead to an accurate constituent approximation for the low-energy properties of hadrons. This requires a cutoff that violates explicit gauge i…
A New Renormalization Group for Hamiltonian Field Theory
Robert J. Perry, Sergio Szpigel
The Schrodinger equation with a two-dimensional delta-function potential is a simple example of an asymptotically free theory that undergoes dimensional transmutation. Renormalizat…
Light-Front QCD: A Constituent Picture of Hadrons
Robert J. Perry
Light-front coordinates offer a scenario in which a constituent approximation of hadron structure can emerge from QCD. This requires cutoffs that violate Lorentz covariance and gau…
A Constituent Picture of Hadrons from Light-Front QCD
Robert J. Perry
It may be possible to derive a constituent approximation for bound states in QCD using hamiltonian light-front field theory. Cutoffs that violate explicit gauge invariance and Lore…