TL;DR
This paper reviews various mechanisms proposed to explain the ridge phenomenon in high-energy heavy-ion collisions, analyzing their limitations and the influence of time scales on the observed long-range rapidity correlations.
Contribution
It provides a comprehensive review of existing models for the ridge effect, highlighting their limitations and exploring how the correlation mechanism's time scale affects the rapidity range.
Findings
Limitations identified in the combined transverse flow and energy loss bias model.
The influence of the correlation mechanism's time scale on the rapidity range is significant.
The review clarifies the constraints of current explanations for the ridge phenomenon.
Abstract
Mechanisms proposed to explain the jet-related correlation of long range in rapidity (the ridge) observed in high-energy heavy-ion collisions are reviewed. Limitations of a model using the combined effect of transverse flow and a direction bias of partons suffering energy loss are discussed. The influence of the time scale of the correlation mechanism on the rapidity range is investigated.
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