Speaker
Alice Zimmermann
(Ruprecht-Karls-Universitaet Heidelberg (DE))
Description
Studies of jet production can provide information about the properties of the hot and dense strongly interacting matter created in ultra-relativistic heavy-ion collisions.
Specifically, measurement of strange particles in jets may clarify the role of fragmentation processes in the anomalous baryon to meson ratio at intermediate particle $p_\textrm{T} $ that was observed in Pb--Pb and, to a lesser extent, in p--Pb collisions.
In this contribution, measurements of the $p_\textrm{T}$ spectra of $\Lambda$ and $\overline{\Lambda}$ baryons and $\textrm{K}^0_\textrm{S}$ mesons produced in association with charged jets in Pb--Pb collisions at $\sqrt{s_\textrm{NN}}=2.76\:\textrm{TeV}$ and p--Pb collisions at $\sqrt{s_\textrm{NN}}=5.02\:\textrm{TeV}$ are presented. The analysis is based on data which was recorded by ALICE at the LHC, exploiting its excellent particle identification capabilities. The baryon/meson ratios of the spectra of strange particles associated with jets are studied for different event activities in p-Pb and are restricted to central events in Pb-Pb. A comparison to the ratios obtained for inclusive particles and for particles stemming from the underlying event as well as to PYTHIA simulations is shown.
Author
Alice Zimmermann
(Ruprecht-Karls-Universitaet Heidelberg (DE))
Co-authors
Vit Kucera
(Acad. of Sciences of the Czech Rep. (CZ))
Xiaoming Zhang
(Lawrence Berkeley National Lab. (US))
