Speaker
Saehanseul Oh
(Yale University (US))
Description
Two-particle correlations have been widely used as a tool to explore particle production mechanisms in heavy ion collisions. The mixed-event method is generally considered as a standard method to correct correlation functions for effects of finite acceptance. We demonstrate that additive correlated signals, such as jets, are distorted by the mixed-event method and propose new methods for more accurate finite-acceptance corrections and background-rejection effects. Correlation functions from the mixed-event method and the proposed new methods are compared through particle-level PYTHIA simulations containing well-defined correlation signals. Significant differences are observed at large $\Delta\eta$ in general and especially in the case of an asymmetric particle distribution like that observed in proton-lead collisions. The applicability and validity of the new methods are discussed in detail.
| On behalf of collaboration: | None |
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Primary author
Saehanseul Oh
(Yale University (US))
Co-authors
Dr
Andreas Morsch
(CERN)
Constantinos Loizides
(Lawrence Berkeley National Lab. (US))
Tim Schuster
(Yale University (US))
