# Search for Flavor-Changing Neutral-Current Charm Decays

Abstract : We search for rare FCNC charm decays of the form $X_c^+\to h^+\llp$, where $X_c^+$ is a charm hadron, $h$ is a pion, kaon or proton, and $\ell^{(}{'}^{)}$ is an electron or a muon. In the pion and kaon modes, we study both $D^+$ and $D_s^+$ decays, while in the proton modes we study $\Lambda_c^+$ decays. Based on a data sample of 288${fb}^{-1}$ of $e^+e^-$ collisions collected by BABAR, we set preliminary 90% confidence level limits between 4 to 40$\times10^{-6}$ for the branching fractions of the different decay modes. For most decay modes, our analysis provides a significant improvement over previous results.
Document type :
Conference papers

http://hal.in2p3.fr/in2p3-00115485
Contributor : Dominique Girod <>
Submitted on : Tuesday, November 21, 2006 - 2:53:45 PM
Last modification on : Saturday, May 22, 2021 - 3:33:45 AM

### Citation

B. Aubert, R. Barate, M. Bona, D. Boutigny, F. Couderc, et al.. Search for Flavor-Changing Neutral-Current Charm Decays. XXXIII International Conference on High Energy Physics (ICHEP'06), Jul 2006, Moscow, Russia. ⟨in2p3-00115485⟩

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