Speaker
Description
The multiplicity dependence of heavy-flavour production provides insight into the interplay between soft and hard processes in proton-proton collisions. By studying the relative yield of J/𝜓 as a function of charged-particle multiplicity, the mechanisms governing quarkonium production in events with different levels of activity can be investigated.
This work uses the EPOS4[1] event generator with and without hydrodynamic evolution to predict the production of muons from charm- and beauty-hadron decays as a function of charged-particle multiplicity in different transverse-momentum regions in pp collisions at
√s =5.02 TeV. The study compares the relative J/𝜓 yield with and without hydrodynamic evolution, as well as observations from the ALICE Collaboration [2]. The comparison provides insight into the role of hydrodynamic evolution in the multiplicity dependence of heavy-flavour and quarkonium production in pp collisions.
REFERENCE
K. Werner, “Revealing a deep connection between factorization and saturation: New insight into modeling high-energy proton-proton and nucleus- nucleus scattering in the EPOS4 framework,” Phys. Rev. C 108, 064903 (2023).
The ALICE collaboration., Acharya, S., Adamová, D. et al. Forward rapidity J/ψ production as a function of charged-particle multiplicity in pp collisions at = 5.02 and 13 TeV. J. High Energ. Phys. 2022, 15 (2022). https://doi.org/10.1007/JHEP06(2022)015
