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Published January 28, 2014 | Submitted + Published
Journal Article Open

Search for lepton-number violating B^+ → X^−ℓ^+ℓ'^+ decays


We report on a search for eleven lepton-number violating processes B^+→X^−ℓ^+ℓ'^+ with X^−=K^−, π^−, ρ^−, K^(*−), or D^− and ℓ^+/ℓ'^+=e^+ or μ^+, using a sample of 471±3 million BB events collected with the BABAR detector at the PEP-II e^+e^− collider at the SLAC National Accelerator Laboratory. We find no evidence for any of these modes and place 90% confidence level upper limits on their branching fractions in the range (1.5–26)×10_(−7).

Additional Information

© 2014 American Physical Society. Received 5 November 2013; published 28 January 2014. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (Netherlands), NFR (Norway), MES (Russia), MICIIN (Spain), and STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation (USA).

Attached Files

Published - PhysRevD.89.011102.pdf

Submitted - 1310.8238v1.pdf


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