@Article{LHCbCollaborationAaij_etal2020, author="LHCb Collaboration (Aaij, R. et al and Garcia Martin, L. M. and Henry, L. and Jashal, B. K. and Martinez-Vidal, F. and Oyanguren, A. and Remon Alepuz, C. and Ruiz Vidal, J. and Sanchez Mayordomo, C.", title="Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)", journal="Physical Review Letters", year="2020", publisher="Amer Physical Soc", volume="124", number="21", pages="211802 - 11pp", 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) x 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) x 10(-9) is determined at 90(95){\%} confidence level. These upper limits are more than one order of magnitude lower than the previous values.", optnote="WOS:000535679100014", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4406), last updated on Tue, 09 Jun 2020 10:42:15 +0000", issn="0031-9007", doi="10.1103/PhysRevLett.124.211802", opturl="https://arxiv.org/abs/2003.03999", opturl="https://doi.org/10.1103/PhysRevLett.124.211802", language="English" }