Forbidden Transitions in Pole Models with Unitary Symmetry
- 22 March 1965
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 137 (6B), B1561-B1565
- https://doi.org/10.1103/physrev.137.b1561
Abstract
Two selection rules are derived which explain vanishing transition matrix elements found for many processes. A decay is forbidden in a pole model having a momentum-independent symmetry-breaking vertex and a symmetry-conserving vertex with arbitrary form factors if either (1) all propagators are equal in magnitude and the matrix elements of the symmetry-breaking vertex are proportional to those of a generator of the symmetry group, or (2) the propagators involve only known mass differences described by the Gell-Mann-Okubo mass formula and the matrix elements of the symmetry-breaking vertex are described by the coupling of three unitary octets. Applications to decays and nonleptonic decays are discussed.
Keywords
This publication has 4 references indexed in Scilit:
- Boson-Pole Model inK-Meson andη-Meson DecaysPhysical Review B, 1964
- Unitary symmetry in photoproduction and other electromagnetic interactionsPhysics Letters, 1963
- τ, τ′ and η → 3π decays and unitary symmetryPhysics Letters, 1963
- Verification of the Tenfold Assignment of the Baryon ResonancesPhysical Review Letters, 1963