Nonleptonic Hyperon Decays with QCD Sum Rules

Abstract

Despite measurements which date more than 20 years ago, no straightforward solution of the ratio of the parity-conserving (P-wave) to parity- violating (S-wave) decays of the hyperons has been obtained. Here we use two 2-point methods in QCD sum rules to examine the problem. We find that resonance contributions are needed to fit the data, similar to a chiral perturbation theory treatment.

17 pages, 8 figures

References in corpus (3)

• Dibaryons with Strangeness: their Weak Nonleptonic Decay using SU(3) Symmetry and how to find them in Relativistic Heavy-Ion Collisions
• The role of resonances in non-leptonic hyperon decays
• Pion Light-Cone Wave Functions and Light-Front Quark Model

Cited by in corpus (4)

• CP Violation in Hyperon Nonleptonic Decays within the Standard Model
• Semileptonic ${\Lambda }_b\to {\Lambda }_c\ell {\bar{\nu }}_{\ell }$ Transition in Full QCD
• Standard model contribution to the electric dipole moment of the deuteron, ${}^3$H, and ${}^3$He nuclei
• Charmed Baryon Decay to a Strange Baryon Plus a Pion Using QCD Sum Rules