Understanding CP violation in lattice QCD
P. Mitra
TL;DR
This paper clarifies that CP violation observed in lattice QCD with a chiral phase does not translate to the continuum theory, emphasizing the classical and non-anomalous conservation of CP in the continuum limit.
Contribution
It demonstrates that CP violation in lattice QCD with a chiral phase is irrelevant for the continuum theory, clarifying a misconception in the field.
Findings
CP violation in lattice QCD with a chiral phase is not relevant for the continuum theory.
CP is classically conserved and non-anomalous in the continuum limit.
Lattice artifacts do not imply physical CP violation in the continuum.
Abstract
It is pointed out that any CP violation which may be found in lattice QCD with a chiral phase in the fermion mass term cannot be relevant for the continuum theory. CP is classically conserved in the corresponding continuum theory and is non-anomalous.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · High-Energy Particle Collisions Research