The 9th Asian Triangle Heavy-Ion Conference (ATHIC 2023)

Hyperon reconstruction methods with high purity and efficiency in Pb-Pb collisions at ALICE

25 Apr 2023, 18:00

20m

Multi-Purpose Studio, 2nd Floor (JMS Aster Plaza)

Poster Hadron interactions and exotics Poster Session

Speaker

Ryoka Tokumoto (Hiroshima University (JP))

Description

The precise knowledge of hyperon-hyperon interaction is one of the key measurements in QCD. To achieve this goal, it is fundamental to identify hyperons with a high purity in a high charged-particle multiplicity environment, such as a central Pb-Pb collisions. Thanks to its excellent particle identification and tracking performance, the ALICE experiment at the LHC is ideal for these measurements.
In this contribution, the performance of hyperon reconstruction in LHC run 2 (2015-2018) with ALICE will be shown. Additionally, new developments on secondary vertex reconstruction using the Kalman filter approach and Boosted Decision Tree will be shown. These developments are of fundamental importance for the high-luminosity Pb-Pb data-taking campaign foreseen at the end of 2023.

Presentation materials

ATHIC_ryoka_v3.pdf