• Browse all
Inclusive J/$\psi$ production at midrapidity in pp collisions at $\sqrt{s}~=~13$ TeV

The ALICE collaboration
CERN-EP-2021-160, 2021.

Abstract
We report on the inclusive J/$\psi$ production cross section measured at the CERN Large Hadron Collider in proton-proton collisions at a centre-of-mass energy $\sqrt{s}~=~13$ TeV. The J/$\psi$ mesons are reconstructed in the $\rm e^{+} e^{-}$ decay channel and the measurements are performed at midrapidity ($|y|<0.9$) in the transverse-momentum interval $0< p_{\rm T} <40$ GeV/$c$, using a minimum bias data sample corresponding to an integrated luminosity $L_{\text{int}} = 32.2~\text{nb}^{-1}$ and an Electromagnetic Calorimeter triggered data sample with $L_{\text{int}} = 8.3~\mathrm{pb}^{-1}$. The $p_{\rm T}$-integrated J/$\psi$ production cross section at midrapidity, computed using the minimum bias data sample, is $\text{d}\sigma/\text{d}y|_{y=0} = 8.97\pm0.24~(\text{stat})\pm0.48~(\text{syst})\pm0.15~(\text{lumi})~\mu\text{b}$. 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 $p_{\rm T}$-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.

  • Table 1

    Data from Figure 2 (red, circle)

    10.17182/hepdata.115422.v1/t1

    Inclusive J/psi cross section. The first systematic uncertainty is the combined systematic uncertainties excluding luminosity, the second is the luminosity

  • Table 2

    Data from Figure 4a (red, circle)

    10.17182/hepdata.115422.v1/t2

    Inclusive J/psi cross section. The first systematic uncertainty is the combined systematic uncertainties excluding luminosity, the second is the luminosity

  • Table 3

    Data from Figure 4b (red,circle)

    10.17182/hepdata.115422.v1/t3

    Inclusive J/psi cross section. The first systematic uncertainty is the combined systematic uncertainties excluding luminosity, the second is the luminosity

Loading Data...

Ask a Question


Your question will be emailed to those involved with the submission. Please mention the relevant table.


Please log in to HEPData to send a question.