Measurement of Singly Cabibbo-Suppressed Decays $D^0\to {\pi }^0{\pi }^0{\pi }^0$, ${\pi }^0{\pi }^0\eta$, ${\pi }^0\eta \eta$ and $\eta \eta \eta$

Abstract

Using a data sample of $e^{+}{e}^{-}$ collision data corresponding to an integrated luminosity of 2.93 $f{b}^{-1}$ collected with the BESIII detector at a center-of-mass energy of $\sqrt{s}=3.773GeV$,we search for the singly Cabibbo-suppressed decays $D^0\to {\pi }^0{\pi }^0{\pi }^0$, ${\pi }^0{\pi }^0\eta$, ${\pi }^0\eta \eta$ and $\eta \eta \eta$ using the double tag method. The absolute branching fractions are measured to be $\mathcal{B}(D^0\to {\pi }^0{\pi }^0{\pi }^0)=(2.0\pm 0.4\pm 0.3)\times 10^{-4}$, $\mathcal{B}(D^0\to {\pi }^0{\pi }^0\eta )=(3.8\pm 1.1\pm 0.7)\times 10^{-4}$ and $\mathcal{B}(D^0\to {\pi }^0\eta \eta )=(7.3\pm 1.6\pm 1.5)\times 10^{-4}$ with the statistical significances of $4.8\sigma$, $3.8\sigma$ and $5.5\sigma$, respectively, where the first uncertainties are statistical and the second ones systematic. No significant signal of $D^0\to \eta \eta \eta$ is found, and the upper limit on its decay branching fraction is set to be $\mathcal{B}(D^0\to \eta \eta \eta )<1.3\times 10^{-4}$ at the $90\%$ confidence level.

References in corpus (8)

• Big-Bang Nucleosynthesis
• Design and Construction of the BESIII Detector
• The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions
• Coherent Exclusive Exponentiation For Precision Monte Carlo Calculations
• Measurement of the ${\mathrm{e}}^{+}{\mathrm{e}}^{-}\to {\pi }^{+}{\pi }^{-}$ Cross Section between 600 and 900 MeV Using Initial State Radiation
• Study a0(980)-f0(980) mixing from a0(980) -> f0(980) transition
• New Measurements of Cabibbo-Suppressed Decays of D Mesons in CLEO-c
• Isospin analysis of D0 decay to three pions

Cited by in corpus (2)

• Observation of $D^{+}\to \eta \eta {\pi }^{+}$ and improved measurement of $D^{0(+)}\to \eta {\pi }^{+}{\pi }^{-(0)}$
• Measurement of Singly Cabibbo-Suppressed Decays $D\to \omega \pi \pi$