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Languages : en
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Book Description
We have performed a search for the rare leptonic decay B[sup +] [yields] [mu][sup +][nu][sub [mu]] with data collected at the [Upsilon](4S) resonance by the BABAR experiment at the PEP-II storage ring. In a sample of 88.4 million B[bar B] pairs, we find no significant evidence for a signal and set an upper limit on the branching fraction [Beta](B[sup +] [yields] [mu][sup +] [nu][sub [mu]])