Inclusive $\text{J}/\psi $ production at midrapidity in pp collisions at $\sqrt{s}=13$ TeV

We report on the inclusive $\text{J}/\psi $ production cross section measured at the CERN Large Hadron Collider in proton–proton collisions at a center-of-mass energy $\sqrt{s}\phantom{\rule{3.33333pt}{0ex}}=\phantom{\rule{3.33333pt}{0ex}}13$ TeV. The $\text{J}/\psi $ mesons are reconstructed in the ${\text{e}}^{+}{\text{e}}^{-}$ decay channel and the measurements are performed at midrapidity ( $|y|<0.9$ ) in the transverse-momentum interval $0<{p}_{T}<40$ GeV/ $c$ , using a minimum-bias data sample corresponding to an integrated luminosity ${L}_{\text{int}}=32.2\phantom{\rule{3.33333pt}{0ex}}{\text{nb}}^{-1}$ and an Electromagnetic Calorimeter triggered data sample with ${L}_{\text{int}}=8.3\phantom{\rule{3.33333pt}{0ex}}{\mathrm{pb}}^{-1}$ . The ${p}_{T}$ -integrated $\text{J}/\psi $ production cross section at midrapidity, computed using the minimum-bias data sample, is ${\text{d}\sigma /\text{d}y|}_{y=0}=8.97±0.24\phantom{\rule{3.33333pt}{0ex}}\left(\text{stat}\right)±0.48\phantom{\rule{3.33333pt}{0ex}}\left(\text{syst}\right)±0.15\phantom{\rule{3.33333pt}{0ex}}\left(\text{lumi}\right)\phantom{\rule{3.33333pt}{0ex}}\mu \text{b}$ . An approximate logarithmic dependence with the collision energy is suggested by these results and available world data, in agreement with model predictions. The integrated and ${p}_{T}$ -differential measurements are compared with measurements in pp collisions at lower energies and with several recent phenomenological calculations based on the non-relativistic QCD and Color Evaporation models.