$\eta$ and ${\eta }^{\prime }$ Physics at BES-III

Abstract

Decays of both $\eta$ and ${\eta }^{\prime }$ provide very useful information in our understanding of low-energy QCD, and experimental signatures for these decays would be extremely helpful at BES-III. The rare decays of the $\eta$ and ${\eta }^{\prime }$ mesons could serve as a low-energy test of the Standard Model and its beyond. The sensitivities of the measurements of $\eta$ and ${\eta }^{\prime }$ decays are discussed at BES-III, in which the $\eta$ and ${\eta }^{\prime }$ mesons are produced in the $\psi$ decays.

A few corrections added, published at J. Phys. G: Nucl. Part. Phys

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Cited by in corpus (12)

• Measurement of the Matrix Element for the Decay ${\eta }^{\prime }\to \eta {\pi }^{+}{\pi }^{-}$
• Study of η-η' mixing from radiative decay processes
• Unified study of $J/\psi \to PV$, $P{\gamma }^{(\ast )}$ and light hadron radiative processes
• How the recent BABAR data for P to γγ* affect the Standard Model predictions for the rare decays P to l+l-
• Observation of the doubly radiative decay ${\eta }^{\prime }\to \gamma \gamma {\pi }^0$
• Dispersive construction of two-loop $P\to \pi \pi \pi$ $(P=K,\eta )$ amplitudes
• Pseudoscalar meson form factors and decays
• Search for the decay ${\eta }^{\prime }\to \gamma \gamma \eta$
• Tests of the fundamental symmetries in eta meson decays
• Study of $a_0^0(980)$-$f_0(980)$ mixing from $a_0(1450)\to a_0^0(980)f_0(500)\to {\pi }^{+}{\pi }^{-}{f}_0(500)$
• Reaction pp -> pp πππas a background for hadronic decays of the eta-prime meson
• Light hadron, Charmonium(-like) and Bottomonium(-like) states