Search for the Rare Decays Bs0 →e+e- And B0 →e+e

LHCb Collaboration

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Resum

A search for the decays Bs0→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(Bs0→e+e-)<9.4(11.2)×10-9 is obtained at 90(95)% confidence level. If no Bs0→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.

Idioma originalAnglès
Número d’article211802
RevistaPhysical Review Letters
Volum124
Número21
DOIs
Estat de la publicacióPublicada - 29 de maig 2020

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