Fraction of ${\chi }_c$ decays in prompt $J/\psi$ production measured in pPb collisions at $\sqrt{s_{NN}}=8.16$ TeV

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1081

The fraction of ${\chi }_{c1}$ and ${\chi }_{c2}$ decays in the prompt $J/\psi$ yield, $F_{\chi c}={\sigma }_{{\chi }_c\to J/\psi }/{\sigma }_{J/\psi }$, is measured by the LHCb detector in pPb collisions at $\sqrt{s_{NN}}=8.16$…