Search for Decays of B{sup 0}{yields}e{sup +}e{sup -}, B{sup 0}{yields}{mu}{sup +}{mu}{sup -}, B{sup 0}{yields}e{sup {+-}}{mu}{sup {+-}}

Journal Article · Fri Jun 10 04:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.94.221803· OSTI ID:20696351

Aubert, B; Barate, R; Boutigny, D; Couderc, F; Gaillard, J -M; Hicheur, A; Karyotakis, Y; Lees, J P; Tisserand, V; Zghiche, A ^[1]; Palano, A; Pompili, A ^[2]; Chen, J C; Qi, N D; Rong, G; Wang, P; Zhu, Y S ^[3]; Eigen, G; Ofte, I; Stugu, B ^[4]

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1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
2. Dipartimento di Fisica and INFN, Universita di Bari, I-70126 Bari (Italy)
3. Institute of High Energy Physics, Beijing 100039 (China)
4. Inst. of Physics, University of Bergen, N-5007 Bergen (Norway); and others

We present a search for the decays B{sup 0}{yields}e{sup +}e{sup -}, B{sup 0}{yields}{mu}{sup +}{mu}{sup -}, and B{sup 0}{yields}e{sup {+-}}{mu}{sup {+-}} in data collected at the {upsilon}(4S) resonance with the BABAR detector at the SLAC B Factory. Using a data set of 111 fb{sup -1}, we find no evidence for a signal in any of the three channels investigated and set the following branching fraction upper limits at the 90% confidence level: B(B{sup 0}{yields}e{sup +}e{sup -})<6.1x10{sup -8}, B(B{sup 0}{yields}{mu}{sup +}{mu}{sup -})<8.3x10{sup -8}, and B(B{sup 0}{yields}e{sup {+-}}{mu}{sup {+-}})<18x10{sup -8}.

• OSTI ID: 20696351
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 22 Vol. 94; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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BRANCHING RATIO
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LEPTONIC DECAY
MUONS MINUS
MUONS PLUS
PAIR PRODUCTION
POSITRONS
RESONANCE
STANDARD MODEL
STANFORD LINEAR ACCELERATOR CENTER