Acciarri, M. ; Adam, A. ; Adriani, O. ; Aguilar-Benitez, M. ; Gurtu, A. ; et., al (1995) Search for neutral charmless B decays at LEP Physics Letters B, 363 (1-2). pp. 127-136. ISSN 0370-2693
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0370-2693(95)01042-O
Abstract
A search for rare charmless decays of Bd0 and Bs0 mesons has been performed in the exclusive channels Bd(s)0 →ηη, Bd(s)0 →ηπ0 and Bd(s)0 →π0π0. The data sample consisted of three million hadronic Z decays collected by the L3 experiment at LEP from 1991 through 1994. No candidate event has been observed and the following upper limits at 90% confidence level on the branching ratios have been set: Br(B0d→ηη) <4.1 × 10−4, Br(B0s→ηη) < 1.5 × 10−3, Br(B0d→ηφ0) < 2.5 × 10−4, Br(B0s→ηphi;0) < 1.0 × 10−3, Br(B0d→phi;0phi,0) < 6.0 × 10−5, Br(B0s→phi,0phi,0) < 2.1 × 10−4.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 83565 |
| Deposited On: | 21 Feb 2012 12:45 |
| Last Modified: | 21 Feb 2012 12:45 |
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