CONF-06/032 Search for the rare decay B -> pi l+ l- |
Doc Type |
Conference Submissions |
Record Created |
July 10, 2006 |
SLAC-PUB |
Preprint # |
hep-ex/0607048 |
Comments |
20 pages, 7 postscript figues, submitted to ICHEP2006 |
Abstract |
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We present results of a search for the rare flavor-changing neutral-current decay B --> pi l+ l-, based on a data sample corresponding to 209 fb-1 of integrated luminosity collected with the BABAR detector at the PEP-II B Factory. We reconstruct the four exclusive B decay modes B+ --> pi+ l+ l- and B0 --> pi0 l+ l-, where l is either an e or mu. We find no evidence for a signal, and we obtain the upper limit at 90% confidence level on the lepton-flavor--averaged branching fraction to be BF(B+ --> pi+ l+ l-) = 2 x tau_B+/tau_B0 x BF(B0 --> pi0 l+ l-) < 7.9 x 10-8. We also obtain an upper limit at 90% confidence level on the lepton-flavor--violating decay B --> pi e mu of BF(B --> pi e mu ) < 9.8 x 10-8.
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1 revised July 10, 2006
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babar-conf-0632.pdf |
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babar-conf-0632.ps.gz |
Paper (journal paper or conference submission by BABAR Collaboration) |
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Submitted To | 2006 International Conference on High Energy Physics (ICHEP'06) |
Date Submitted | July 24, 2006 |
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