Quantum Discrete Symmetry and the Strong CP Problem
| dc.creator | Beane, Silas R. | |
| dc.date | 1997-06-04 | |
| dc.date.accessioned | 2026-07-07T04:01:53Z | |
| dc.date.available | 2026-07-07T04:01:53Z | |
| dc.description | 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. However, there is a residual discrete symmetry with interesting properties. With non-vanishing quark masses, this S_2 symmetry is broken unless \barθ=0 or pi. We further show that there is a sense in which hadrons in the effective theory fall into S_2 multiplets. Surprisingly, predictions of this multiplet structure in the four-flavor effective theory are in good agreement with experiment and have been found previously by imposing Regge asymptotic constraints on pion-hadron scattering amplitudes. | |
| dc.description | 9 pages TeX, uses mtexsis.tex | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9706250 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9706250 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/47011 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Quantum Discrete Symmetry and the Strong CP Problem | |
| dc.type | text |