Search for the rare decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-).

Journal article

We present results from a search for the flavor-changing neutral current decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-), where l(+)l(-) is either an e(+)e(-) or mu(+)mu(-) pair. The data sample comprises 22.7 x 10(6) Upsilon(4S)-->B(-)B decays collected with the BABAR detector at the PEP-II B Factory. We obtain the 90% C.L. upper limits B(B-->Kl(+)l(-))<0.51 x 10(-6) and B(B-->K(*)l(+)l(-))<3.1 x 10(-6), close to standard model predictions for these branching fractions. We hav...

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Authors: Aubert, B; Boutigny, D; Gaillard, J; Hicheur, A; Karyotakis, Y

• Publication status: Published
• Journal: Physical Review Letters
• Volume: 88
• Issue: 24
• Pages: 241801
• Publication date: 2002-06-01
• DOI: 10.1103/physrevlett.88.241801
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English
• Keywords: BABAR Collaboration