Study of $\eta$-meson Decays at KLOE/KLOE-2

Abstract

Working at a $\varphi$-factory, KLOE/KLOE-2 has collected a very large and clean sample of $\eta$ decays, which allow to perform a variety of precision measurements. This report presents the recent results on the $\eta$-meson decays from KLOE/KLOE-2 experiments, including the search of the $C$-violating decay $\eta \to \gamma \gamma \gamma$, the determination of the $CP$ asymmetry in $\eta \to {\pi }^{+}{\pi }^{-}{e}^{+}{e}^{-}$, the precision measurement of the $\eta \to {\pi }^{+}{\pi }^{-}{\pi }^0$ Dalitz plot distribution, the search for the $CP$-violating decay $\eta \to {\pi }^{+}{\pi }^{-}$ and the precision measurement of $\mathcal{O}(p^6)$ dominated decay $\eta \to \gamma \gamma {\pi }^0$.

arXiv comment6 pages, 4 figures

References in corpus (10)

• Searching for the light dark gauge boson in GeV-scale experiments
• New weakly-coupled forces hidden in low-energy QCD
• Electromagnetic corrections in eta --> 3 pi decays
• Electromagnetic Corrections to the decays $\eta \to 3\pi$
• The CP-violating asymmetry in η\toπ^+ π^- e^+e^-
• Measurement of the branching ratio and search for a CP violating asymmetry in the eta -> pi+pi-e+e-(gamma) decay at KLOE
• A new measurement of the rare decay eta -> pi^0 gamma gamma with the Crystal Ball/TAPS detectors at the Mainz Microtron
• Upper limit on the eta -> pi+pi- branching ratio with the KLOE experiment
• The Neutral Decay Modes of the Eta-Meson
• Upper Limit on the eta to gamma gamma gamma Branching Ratio with the KLOE Detector

Cited by in corpus (2)

• Precision tests of fundamental physics with $\eta$ and ${\eta }^{\prime }$ mesons
• Probing Invisible Vector Meson Decays with NA64 and LDMX