Measurement of the ratio of the B${}_{\mathrm{c}}^{+}$ $\to$ J/$\ddot{I}ˆ$$\ddot{I}{„}^{+}\hat{I}{½}_{\ddot{I}}„$ and B${}_{\mathrm{c}}^{+}$ $\to$ J/$\ddot{I}ˆ$ $\hat{I}{¼}^{+}\hat{I}{½}_{\hat{I}}¼$ branching fractions using three-prong $\ddot{I}„$ lepton decays

CMS Collaboration

The ratio between the B${}_{\mathrm{c}}^{+}$ $\to$ J/$\ddot{I}ˆ$$\ddot{I}{„}^{+}\hat{I}{½}_{\ddot{I}}„$ and B${}_{\mathrm{c}}^{+}$ $\to$ J/$\ddot{I}ˆ$$\hat{I}{¼}^{+}\hat{I}{½}_{\hat{I}}¼$ branching fractions is measured using a data sample of proton-proton col…