Current algebra and PCAC-application to pp→ K⁺K^-π⁰π⁰π⁰

Abstract

Current algebra and the partially conserved axial-vector current (PCAC) hypothesis are employed to arrive at the amplitude for the emission of three neutral soft pions in the annihilation process p-bar p to K+K-. All final-state pi - pi scattering effects coming out of the current-algebra approach are taken into account. The differential rate for the process is normalised to the rate of the original reaction without the soft pions. Branching ratios w(pp to K+K- pi 0 pi 0 pi 0)/w(pp to K+K-) are computed for different centre-of-mass energies. A comparison with the existing experimental data is made and the agreement is found to be reasonable.