Preliminary result of prompt and non-prompt J/psi production measurement in p-Pb collisions at 8.16 TeV using minimum bias and TRD triggered events.

Non-prompt J/psi fraction is measured by 2-dimensional extended unbinned maximum likelihood fit on invariant mass (mee) and pseudo-proper decay-length (x) of electron-positron pairs.

The projection of fit on invariant mass (mee) and pseudo-proper decay-length (x) in 4 < pT < 5 GeV and resulting non-prompt J/psi fraction as a function of pT in comparison with previous measurements are presented.