TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Garcia Martin, L. M.
AU  - Henry, L.
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
AU  - Sanchez Mayordomo, C.
PY  - 2020
DA  - 2020//
TI  - Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 211802 - 11pp
VL  - 124
IS  - 21
PB  - Amer Physical Soc
AB  - 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.
SN  - 0031-9007
UR  - https://arxiv.org/abs/2003.03999
UR  - https://doi.org/10.1103/PhysRevLett.124.211802
DO  - 10.1103/PhysRevLett.124.211802
LA  - English
N1  - WOS:000535679100014
ID  - LHCbCollaborationAaij_etal2020
ER  -