PoS - Proceedings of Science
Volume 390 - 40th International Conference on High Energy physics (ICHEP2020) - Parallel: Quark and Lepton Flavour Physics
Rare and forbidden decays of D0 meson
R. Cheaib* on behalf of the BABAR collaboration
*corresponding author
Full text: pdf
Pre-published on: March 01, 2021
Published on:
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.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.