# Observation of Two Excited B$^+_\mathrm{c}$ States and Measurement of the B$^+_\mathrm{c}$(2S) Mass in pp Collisions at $\sqrt{s} =$ 13 TeV

CMS Collaboration, Igor Volobouev

Research output: Contribution to journalArticlepeer-review

Original language English 132001 Phys. Rev. Lett. Published - 2019

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