5 papers · 1 filter
The Advantages of Being Vectorlike
Silas R. Beane
We construct an asymptotically free gauge theory with an SU(2)xSU(2)xU(1) vectorlike flavor symmetry. We show that this gauge theory has properties which provide insight into aspec…
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.…
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…
Algebraic Content of Chiral Symmetry and the Strong Transitions of Heavy Mesons
S. R. Beane
The algebraic content of chiral symmetry constrains the strong interactions of mesons containing a single heavy quark. We show that the S-wave single-pion transition amplitudes of…
Direct Channel Dominance in Goldstone Boson Scattering in the Resonance Region
Silas R. Beane, Charles B. Chiu
We consider the scattering of Goldstone bosons in the range of intermediate energies, and in particular focus our attention on the scattering of pions in the -resonance region.…