J/ψ production as a function of charged-particle multiplicity in p-Pb collisions at √sNN = 8.16 TeV
ALICE collaboration. (2020). J/ψ production as a function of charged-particle multiplicity in p-Pb collisions at √sNN = 8.16 TeV. Journal of High Energy Physics, 2020(10), Article 162. https://doi.org/10.1007/JHEP09(2020)162
Published inJournal of High Energy Physics
DisciplineYdin- ja kiihdytinfysiikan huippuyksikköFysiikkaCentre of Excellence in Nuclear and Accelerator Based PhysicsPhysics
© 2020 CERN
Inclusive J/ψ yields and average transverse momenta in p-Pb collisions at a center-of-mass energy per nucleon pair √sNN = 8.16 TeV are measured as a function of the charged-particle pseudorapidity density with ALICE. The J/ψ mesons are reconstructed at forward (2.03 < ycms < 3.53) and backward (−4.46 < ycms < −2.96) center-of-mass rapidity in their dimuon decay channel while the charged-particle pseudorapidity density is measured around midrapidity. The J/ψ yields at forward and backward rapidity normalized to their respective average values increase with the normalized charged-particle pseudorapidity density, the former showing a weaker increase than the latter. The normalized average transverse momenta at forward and backward rapidity manifest a steady increase from low to high charged-particle pseudorapidity density with a saturation beyond the average value.
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