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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/175172
Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)
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A search for the decays B0s→e+e− and B0→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 B0→e+e− decays, an upper limit on the branching fraction B(B0s→e+e−)<9.4(11.2)×10−9 is obtained at 90(95)% confidence level. If no B0s→e+e− contribution is assumed, a limit of B(B0→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.
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ALFONSO ALBERO, Alejandro, et al. Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-). Physical Review Letters. 2020. Vol. 124, num. 21, pags. 211802. ISSN 0031-9007. [consulted: 16 of June of 2026]. Available at: https://hdl.handle.net/2445/175172