Abstract
The production of strange KS0, Λ and multi-strange (Ξ± and Ω±) particles in jets and the underlying event in pp collisions at √S = 13 TeV has been studied with ALICE at the LHC. The pT-differential density of the particles produced in a jet is compared to the inclusive distribution. The corresponding (Λ + Λ¯)/2KS0 and (Ξ− + Ξ¯+)/(Λ + Λ¯) ratios in jets as a function of pT are also reported in this work. The pT-differential density distribution of hadrons associated with jets decreases slower than the one reported for inclusive particle production. The ratios measured in jets show a clear difference when compared to the inclusive ones at the intermediate pT range. The results provide an opportunity to test the strange and multi-strange particle production mechanisms with hard scattering.
Highlights
The transverse momentum dependence of the baryon-to-meson yield ratio in hadronic and nuclear collisions is sensitive to the collective expansion of the system, the partonic recombination into hadrons, the jet fragmentation, and hadronization
We explore the connection between the baryon-to-meson ratio enhancement and jet production via the measurement of the particles (KS0, Λ, and Ξ) in pp collisions pT-√differential spectrum of at s = 13 TeV done both strange and multi-strange inclusively and within energetic jets
Let us point out that the pT-differential density distribution of inclusive hadrons is lower than that of the perpendicular cone (PC) selection since the latter is obtained from events which contain jets with pcTh, jet > 10 GeV/c
Summary
The transverse momentum (pT) dependence of the baryon-to-meson yield ratio in hadronic and nuclear collisions is sensitive to the collective expansion of the system, the partonic recombination into hadrons, the jet fragmentation, and hadronization. TpreoVduacntdiopn–oPfbthceolVlis0iopnasrtiactle√s s(NKNS0 and Λ) in jets reconstructed in = 5.02 TeV [2]. In this contribution, we explore the connection between the baryon-to-meson ratio enhancement and jet production via the measurement of the particles (KS0, Λ, and Ξ) in pp collisions pT-√differential spectrum of at s = 13 TeV done both strange and multi-strange inclusively and within energetic jets. The results set new constraints on the particle production mechanisms in jets and provide new insight into the understanding of the origin of flow-like correlations observed in small colliding systems
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