Work

Identification of a Pseudoscalar State at 1440 MeV in Jψ Radiative Decays

Year: 1982
Type: article
Abstract: From a partial-wave analysis of the $K\overline{K}\ensuremath{\pi}$ system in the decay $\frac{J}{\ensuremath{\psi}}\ensuremath{\rightarrow}\ensuremath{\gamma}{K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$, it is determined that the quantum numbers of the $K\overline{K}\ensuremath{\pi}$ resonance at 1440 MeV, previously identified as the $E(1420)$, are ${J}^{\mathrm{PC}}={0}^{\ensuremath{-}+}$. This new particle has been named the $\ensuremath{\iota}$.
Language: English
Open Access status: green
OpenAlex ID: W2200645700
FWCI: 11.39
Cites: 7
Cited by: 121
Related to: 10