6533b82cfe1ef96bd128fe6d

RESEARCH PRODUCT

enhancement and the Glashow-Schnitzer-Weinberg sum rule

Karl SchilcherN.f. Nasrallah

subject

PhysicsNuclear and High Energy PhysicsAlephParticle physicsAmplitudeMagnitude (mathematics)High Energy Physics::ExperimentSum rule in quantum mechanicsLimit (mathematics)Nuclear Experiment

description

Abstract In 1967 Glashow, Schnitzer and Weinberg derived a sum rule in the soft-pion and soft kaon limit relating the ΔI= 1 2 non-leptonic K→2π amplitude to integrals over strange and non-strange spectral functions. Using the recent ALEPH data from τ-decay, we show that the sum rule, slightly modified to reduce contributions near the cut, yields the correct magnitude decay amplitude corresponding to the ΔI= 1 2 rule.

https://doi.org/10.1016/s0370-2693(00)00680-8