Exact Bounds forDecay Parameters
- 1 June 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 3 (11), 2807-2813
- https://doi.org/10.1103/physrevd.3.2807
Abstract
We derive exact bounds for the decay form factors . Particularly, we find the bound , where is the propagator of the divergence of the strangeness-changing current at zero momentum. If we further assume the Hamiltonian of Gell-Mann, Oakes, and Renner in order to estimate , we obtain . Similarly, an inequality testing the standard soft-pion theorem is found to be well satisfied. In addition, a new inequality involving derivatives of is derived. Taking , this inequality leads to .
Keywords
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