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A Search for the $B^0 \to e^+e^-\gamma$ and $B^0 \to \mu^+\mu^-\gamma$ Decays

Abstract : With the BaBar detector at the PEP-II asymmetric $B$ Factory at SLAC, we present the first search for the decays $B^0\to\ell^+\ell^-\gamma$ ($l=e, \mu$). Using a data set of 292 $fb^{-1}$ collected at the $\Upsilon(4S)$ resonance, we find no significant signal and set the following branching fraction upper limits at 90% confidence level: $\mathcal{B}(B^0\to e^+e^-\gamma)<0.7\times 10^{-7}$ and $\mathcal{B}(B^0\to \mu^+\mu^-\gamma)<3.4\times 10^{-7}$.
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Conference papers
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http://hal.in2p3.fr/in2p3-00119237
Contributor : Dominique Girod <>
Submitted on : Friday, December 8, 2006 - 11:23:50 AM
Last modification on : Wednesday, September 16, 2020 - 4:18:47 PM

Citation

B. Aubert, R. Barate, M. Bona, D. Boutigny, F. Couderc, et al.. A Search for the $B^0 \to e^+e^-\gamma$ and $B^0 \to \mu^+\mu^-\gamma$ Decays. 33rd International Conference on High-Energy Physics, ICHEP 06, Jul 2006, Moscou, Russia. ⟨in2p3-00119237⟩

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