Showing 1997Show all
2 papers · 1 filter
hep-ph1997
Quantum Discrete Symmetry and the Strong CP Problem
Silas R. Beane
We study a 2N-flavor effective theory of N-flavor QCD. With the axial anomaly accounted for in the effective theory by a 't Hooft interaction, only QCD conserved currents survive.…
hep-ph1997
Novel Algebraic Consequences of Chiral Symmetry
Silas R. Beane
Phenomenologically motivated Lie-algebraic sum rules determine the representations of unbroken SU(2)_L X SU(2)_R filled out by mesons containing a single heavy quark, in the limit…