Jet-like correlations with respect to ${\text{K}}_{S}^{0}$ and $\Lambda $ ( $\overline{\Lambda }$ ) in pp and central Pb–Pb collisions at $\sqrt{{s}_{\text{NN}}}=5.02$ TeV

Two-particle correlations with ${\text{K}}_{S}^{0}$ , $\Lambda $ / $\overline{\Lambda }$ , and charged hadrons as trigger particles in the transverse momentum range $8<{p}_{\text{T},\text{trig}}<16$ GeV/ $c$ , and associated charged particles within $1<{p}_{\text{T},\text{assoc}}<8$ GeV/ $c$ , are studied at midrapidity in pp and central Pb–Pb collisions at a centre-of-mass energy per nucleon–nucleon collision $\sqrt{{s}_{\text{NN}}}\phantom{\rule{3.33333pt}{0ex}}=\phantom{\rule{3.33333pt}{0ex}}5.02$ TeV with the ALICE detector at the LHC. After subtracting the contributions of the flow background, the per-trigger yields are extracted on both the near and away sides, and the ratio in Pb–Pb collisions with respect to pp collisions ( ${I}_{\text{AA}}$ ) is computed. The per-trigger yield in Pb–Pb collisions on the away side is strongly suppressed to the level of ${I}_{\text{AA}}$ $\approx 0.6$ for ${p}_{\text{T},\text{assoc}}>3$ GeV/ $c$ as expected from strong in-medium energy loss, while an enhancement develops at low ${p}_{\text{T},\text{assoc}}$ on both the near and away sides, reaching ${I}_{\text{AA}}$ $\approx 1.8$ and 2.7 respectively. These findings are in good agreement with previous ALICE measurements from two-particle correlations triggered by neutral pions ( ${\pi }^{0}$ –h) and charged hadrons (h–h) in Pb–Pb collisions at $\sqrt{{s}_{\text{NN}}}\phantom{\rule{3.33333pt}{0ex}}=\phantom{\rule{3.33333pt}{0ex}}2.76$ TeV. Moreover, the correlations with ${\text{K}}_{S}^{0}$ mesons and $\Lambda $ / $\overline{\Lambda }$ baryons as trigger particles are compared to those of inclusive charged hadrons. The results are compared with the predictions of Monte Carlo models.