Abstract
We present studies of strange particle yields and correlations in pp collisions in the PYTHIA8 event generator by studying forward-backward correlations. Several key processes that give rise to these correlative effects are identified and manipulated to probe the fundamental properties of strange particle emitting sources. The sensitivity of strange particle production and correlations to PYTHIA's multiparton interaction, color reconnection, and explicit strangeness suppression are shown.
Highlights
Forward-backward (FB) correlations are a powerful tool for studying the initial stages of pp and AA collisions
This value is defined via a linear regression of the average value of a given quantity B measured in the backward hemisphere ( B F ) as a function of value of another quantity F measured in the forward hemisphere
A number of observables in pp and AA collisions can not be described by independently hadronizing particle emitters, indicating the presence of collective effects
Summary
Forward-backward (FB) correlations are a powerful tool for studying the initial stages of pp and AA collisions. The FB correlation strength is characterized by the correlation coefficient bcorr This value is defined via a linear regression of the average value of a given quantity B measured in the backward hemisphere ( B F ) as a function of value of another quantity F measured in the forward hemisphere. In ALICE paper [7], the “classical” approach to the long-range correlation analysis in two pseudorapidity intervals was expanded using additional azimuthal (φ) sectors within these windows. This approach allows for a more thorough investigation of the SRC and LRC and their contributors, which can provide stronger constrains on phenomenological string models. Published under licence by IOP Publishing Ltd doi:10.1088/1742-6596/668/1/012034
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