Search for the B s 0  → η′ϕ decay

This is the authors' abstract. We don't add key points for this paper.

A search for the charmless B 0 s decay is performed using pp collision data collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb -1 . No signal is observed and upper limits on the B 0 s branching fraction are set to 0.82 10 -6 at 90% and 1.01 10 -6 at 95% confidence level.