Inclusive J/ψ production in Xe–Xe collisions at sNN=5.44 TeV

Quarkonium measurements in nucleus-nucleus collisions with ALICE

“…The ALICE experiment was capable to record integrated luminosities of L Pb int ≈ 225 μb −1 and L Xe int ≈ 0.34 μb −1 at forward rapidity and L Pb int ≈ 13 μb −1 and L Xe int ≈ 0.25 μb −1 at mid-rapidity, respectively. The large difference, especially for the Pb−Pb sample, is due the fact that at mid-rapidity minimum bias events were selected, while at forward rapidity special muon triggers were applied during data taking [2,6].…”

Transverse Momentum and Pseudorapidity Dependence of Particle Production in Xe–Xe Collision at sNN=5.44 TeV

“…contributions from different categories are seen intuitively and the configuration of the collision system is quantized visually. It helps us understand the influence of the collision-system size and the evolution information of the produced matter in the collision [24,25].…”

“…In 2017, the LHC performed a different kind of hadron collision at high energy, i.e. the first Xe 129 ion collisions at 푠 = 5.44 TeV [4][5][6][7]. Since the nucleons of the Xe 129 nucleus is fewer than that of Pb 208 nucleus, the investigation of Xe-ion collisions can roughly bridge or connect the gap between and Pb ion collisions.…”

Quarkonium production in nuclear collisions

“…The new measurement of the inclusive J/ψ R AA as a function of centrality in Xe+Xe collisions at √ s NN = 5.44 TeV [9] is shown in the left panel of Fig. 5 as red points.…”

“…Surprisingly, the J/ψ R AA above 10 GeV/c or so tracks the charged hadron R AA closely, indicating that the parton energy loss, which is responsible for the charged hadron suppression at high p T , might also play an important role for very high-p T J/ψ suppression if they are mainly produced through parton fragmentation outside of the medium. .44 TeV [10,9]. Transport model calculations, including both direct and regenerated J/ψ, are shown for comparison [11,12].…”