Article ; Online: Search for the Rare Decays B_{s}^{0}→e^{+}e^{-} and B^{0}→e^{+}e^{-}.
2020 Volume 124, Issue 21, Page(s) 211802
Abstract: A search for the decays B_{s}^{0}→e^{+}e^{-} and B^{0}→e^{+}e^{-} is performed using data collected ... no contribution from B^{0}→e^{+}e^{-} decays, an upper limit on the branching fraction B(B_{s}^{0}→e^ ... e^{-})<9.4(11.2)×10^{-9} is obtained at 90(95)% confidence level. If no B_{s}^{0}→e^{+}e^ ...
| Abstract | A search for the decays B_{s}^{0}→e^{+}e^{-} and B^{0}→e^{+}e^{-} is performed using data collected with the LHCb experiment in proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 2 fb^{-1}, respectively. No signal is observed. Assuming no contribution from B^{0}→e^{+}e^{-} decays, an upper limit on the branching fraction B(B_{s}^{0}→e^{+}e^{-})<9.4(11.2)×10^{-9} is obtained at 90(95)% confidence level. If no B_{s}^{0}→e^{+}e^{-} contribution is assumed, a limit of B(B^{0}→e^{+}e^{-})<2.5(3.0)×10^{-9} is determined at 90(95)% confidence level. These upper limits are more than one order of magnitude lower than the previous values. |
|---|---|
| Language | English |
| Publishing date | 2020-06-12 |
| Publishing country | United States |
| Document type | Journal Article |
| ZDB-ID | 208853-8 |
| ISSN | 1079-7114 ; 0031-9007 |
| ISSN (online) | 1079-7114 |
| ISSN | 0031-9007 |
| DOI | 10.1103/PhysRevLett.124.211802 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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