Strangeness production in two-particle azimuthal correlations on the near and away side measured with ALICE in pp collisions at 7 TeV

2014/09/11 by Sandun Jayarathna, Jayarathna, Sandun
Physics and Astronomy · #Particle physics theoretical and experimental studies #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1409.3498

Abstract

Two-particle azimuthal correlations allow one to study high-p_{\rm T} parton fragmentation without full jet reconstruction. Enhancements of the azimuthal correlations are seen at Δφ≈ 0 and Δφ≈ π, resulting from back-to-back jet fragmentation in the parton center-of-mass system. We present the current status of the study of correlations between charged trigger particles and associated strange baryons (Λ) and mesons (K_S⁰) in pp collisions at √(s) = 7 TeV. A data-driven feeddown correction for Λ is also presented, which could allow a more accurate calculation of the primary Λ/K_S⁰ ratio in jets and the underlying event.

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