Summary: | Two-particle angular correlations of charged-particle pairs are studied in pp collisions
at √s = 13 TeV with four different Monte-Carlo event generators. Correlation functions
are constructed with relative azimuthal angle ∆φ and relative pseudorapidity distance ∆η
between hadrons such as π, K, p and Λ particle pairs in multiple ∆η intervals. Using the
low-multiplicity template fit method, enhanced jet yields in high-multiplicity events with
respect to low-multiplicity events are subtracted. Due to a kinematic bias from jets and
the difference in how event generators implement jet and flow components, subtraction
of non-flow bias results in small systems. With a multiphase transport (AMPT) string
melting model mass ordering of the extracted flow coefficients at low-pT and particle type
grouping at high-pT ranges was observed. However, these characteristics are found to be
different from results observed in large systems.
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