Measurement of the B${}_{\mathrm{s}}^0$ $\to$ J/$\psi$K${}_{\mathrm{S}}^0$ effective lifetime from proton-proton collisions at $\sqrt{s}$ = 13 TeV

CMS Collaboration

The effective lifetime of the B${}_{\mathrm{s}}^0$ meson in the decay B${}_{\mathrm{s}}^0$ $\to$ J/$\psi$K${}_{\mathrm{S}}^0$ is measured using data collected during 2016-2018 with the CMS detect…