Rare and forbidden decays of D0 meson
R. Cheaib* on behalf of the BABAR collaboration
*corresponding author
Pre-published on:
March 01, 2021
Published on:
—
Abstract
Rare or forbidden decays of the $D^0$ meson are an excellent probe for physics beyond the Standard Model. In this talk, we report the observation of the rare charm decay $D^0 \rightarrow K^- \pi^+ e^+ e^-$ with a 9.7$\sigma$ significance. In addition, we present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type $D^0 \rightarrow h^{'-} h^- \ell^{'+}\ell^+$ and $D^0 \rightarrow h^{'-} h^+\ell^{\pm}\ell^{\mp}$, where h and h$'$ represent a K or $\pi$ meson. Furthermore, a search for seven lepton-number-violating decays of the type $D^0 \rightarrow X^0 e^{\pm} \mu^{\mp}$ , with $X^0$ a $\pi^0$, $K_S^0$, $K^{*0}$, $\rho^0$, $\phi$, $\omega$, or $\eta$ meson, is also presented. The results are based on 468 fb$^{-1}$ of $e^{+}e^{-}$ collision data collected at or close to the $\Upsilon(4S)$ resonance with the \babar{} detector at the SLAC National Accelerator Laboratory.
How to cite
Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating
very compact bibliographies which can be beneficial to authors and
readers, and in "proceeding" format
which is more detailed and complete.