"Investigations on identified two-particle correlations and quantum
number conservation in p-p, p-Pb and Pb-Pb collisions at LHC energies"
Mr. Gyula Bencedi, Instituto Wigner, Budapest
"Unidentified two-particle correlations are widely pursued at RHIC and
LHC to investigate particle production and hadronization mechanisms as
well as collective effects. Two-particle correlations with identified
trigger and identified associated particles give information on quantum
number conservation and the flavour balance during parton fragmentation
and hadronization, however their detailed measurement at LHC is just
started.
We present a systematic study of two-particle correlations with
identified trigger and identified associated particles at LHC energies
using several state of art LHC era Monte Carlo generators. The
identified two-particle correlation studies of bulk particles: charged
pions, kaons and protons reveal interesting trigger-hadron dependent
splitting of the associated identified hadron spectra in all collision
systems. Furthermore, the identified correlation functions show change
in the identified trigger-hadron dependent evolution with transverse
momenta compared to unidentified correlation functions. The splitting
effect and their evolution from p-p and p-Pb to Pb-Pb collisions will be
discussed for PYTHIA, EPOS and HIJING generated events"