We report on the measurement of inclusive, non-prompt, and prompt J/$\psi$-hadron correlations by the ALICE Collaboration at the CERN Large Hadron Collider in pp collisions at a center-of-mass energy of $13~\text{ TeV}$. The correlations are studied at midrapidity ($|y| < 0.9$) in the transverse momentum ranges $p_{ \rm T} < 40~\text{ GeV}/c$ for the J/$\psi$ and $0.15 < p_{ \rm T} < 10~\text{ GeV}/c$ and $|\eta|<0.9$ for the associated hadrons. The measurement is based on minimum bias and high multiplicity data samples corresponding to integrated luminosities of $L_{ \text{ int}} = 34~\text{ nb}^{ -1}$ and $L_{ \text{ int}} = 6.9~\text{ pb}^{ -1}$, respectively. In addition, two more data samples are employed, requiring, on top of the minimum bias condition, a threshold on the tower energy of $E = 4$ and $9~\text{ GeV}$ in the ALICE electromagnetic calorimeters, which correspond to integrated luminosities of $L_{ \text{ int}} = 0.9~\text{ pb}^{ -1}$ and $L_{ \text{ int}} = 8.4~\text{ pb}^{ -1}$, respectively. The azimuthally integrated near and away side yields of associated charged hadrons per J/$\psi$ trigger are presented as a function of the J/$\psi$ and associated hadron transverse momentum. The measurements are discussed in comparison to PYTHIA calculations.

Categories: nucl-ex hep-ex

J/$\psi$-hadron correlations at midrapidity in pp collisions at $\mathbf{\sqrt{\it s}}$ = 13 TeV