Measurements of two-particle angular correlations between an identified strange hadron (K0Sor Λ/Λ) and a charged particle, emitted in pPb collisions, are presented over a wide range in pseudorapidity and full azimuth. The data, corresponding to an integrated luminosity of approximately 35nb−1, were collected at a nucleon–nucleon center-of-mass energy (√sNN) of 5.02TeV with the CMS detector at the LHC. The results are compared to semi-peripheral PbPb collision data at √sNN=2.76TeV, covering similar charged-particle multiplicities in the events. The observed azimuthal correlations at large relative pseudorapidity are used to extract the second-order (v2) and third-order (v3) anisotropy harmonics of K0Sand Λ/Λparticles. These quantities are studied as a function of the charged-particle multiplicity in the event and the transverse momentum of the particles. For high-multiplicity pPb events, aclear particle species dependence of v2and v3is observed. For pT\u3c2GeV, the v2and v3values of K0Sparticles are larger than those of Λ/Λparticles at the same pT. This splitting effect between two particle species is found to be stronger in pPbthan in PbPbcollisions in the same multiplicity range. When divided by the number of constituent quarks and compared at the same transverse kinetic energy per quark, both v2and v3for K0Sparticles are observed to be consistent with those for Λ/Λparticles at the 10% level in pPbcollisions. This consistency extends over a wide range of particle transverse kinetic energy and event multiplicities
