Tensor amplitudes for partial wave analysis of ψ→ΔΔ within helicity frame

2020/12/20 by Dong, Xiang, Su, Kexin, Cai, Hao +2
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th)

paper · doi:10.48550/arxiv.2012.10913

Abstract

We have derived the tensor amplitudes for partial wave analysis of ψ→ΔΔ, Δ→ p π within the helicity frame, as well as the amplitudes for the other decay sequences with same final states. These formulae are practical for the experiments measuring ψ decaying into p pπ⁺ π^- final states, such as BESIII with its recently collected huge J/ψ and ψ(2S) data samples.

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