Search for the Rare Decays <i>B<sub>s</sub></i><SUP>0</SUP> → <i>e</i><SUP>+</SUP> <i>e</i><SUP>-</SUP> and <i>B</i><SUP>0</SUP> → <i>e</i><SUP>+</SUP> <i>e</i><SUP>-</SUP>

Aaij, R, Beteta, C Abellan, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S
et al (show 894 more authors) (2020) Search for the Rare Decays <i>B<sub>s</sub></i><SUP>0</SUP> → <i>e</i><SUP>+</SUP> <i>e</i><SUP>-</SUP> and <i>B</i><SUP>0</SUP> → <i>e</i><SUP>+</SUP> <i>e</i><SUP>-</SUP>. PHYSICAL REVIEW LETTERS, 124 (21). 211802-.

Access the full-text of this item by clicking on the Open Access link.


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.

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at
Uncontrolled Keywords: LHCb Collaboration
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 03 Jul 2020 08:55
Last Modified: 10 Oct 2023 17:27
DOI: 10.1103/PhysRevLett.124.211802
Open Access URL:
Related URLs: