Study of the psi(2S) decay to p pbar pi+ pi-
J. G. Bian
TL;DR
This paper measures the branching ratios of psi(2S) decays to proton-antiproton plus pions and omega, analyzing a large dataset to understand decay dynamics and invariant mass distributions.
Contribution
It provides new measurements of branching ratios and detailed analysis of the pi+ pi- invariant mass distribution in psi(2S) decays, based on extensive data from BESII.
Findings
Measured branching ratios for psi(2S) decays to p pbar pi+ pi- and p pbar omega.
Analyzed pi+ pi- invariant mass distribution in psi(2S) decay.
Collected and analyzed 14 million psi(2S) events.
Abstract
The branching ratios of psi(2S)-->p pbar Pi+ pi- and psi(2S)-->p pbar omega, omega--> pi+ pi- pi0 are measured and the pi+ pi- invariant mass distribution in the first decay is discussed by analyzing 14 million produced psi(2S) events collected by the BESII detector at the BEPC.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Dark Matter and Cosmic Phenomena · Neutrino Physics Research