202 citations · 1.3k across the 78 of their papers we have counts for
4 papers · 1 filter
Ambiguities in the up quark mass
Michael Creutz
It has long been known that no physical singularity is encountered as up quark mass is adjusted from small positive to negative values as long as all other quarks remain massive. T…
Spontaneous violation of CP symmetry in the strong interactions
Michael Creutz
Some time ago Dashen pointed out that spontaneous CP violation can occur in the strong interactions. I show how a simple effective Lagrangian exposes the remarkably large domain of…
The Early Days of Lattice Gauge Theory
Michael Creutz
I discuss some of the historical circumstances that drove us to use the lattice as a non-perturbative regulator. This approach has had immense success, convincingly demonstrating q…
CP symmetry and the strong interactions
Michael Creutz
I discuss several aspects of CP non-invariance in the strongly interacting theory of quarks and gluons. I use a simple effective Lagrangian technique to map out the region of quark…