The Momentum-Kick Model can fit the near-side ridge in high-multiplicity pp collisions at 13 and 7 TeV, with multiplicity-dependent parameters and a speculative 14 TeV prediction.
Reaction Plane Dependent Away-side Modification and Near-side Ridge in Au+Au Collisions
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abstract
STAR preliminary results of di-hadron correlations versus $\phi_{s}$, the trigger particle azimuthal angle relative to the constructed event plane are reported for mid-central Au+Au collisions and compared to central Au+Au as well as minimum bias d+Au collisions. The correlations are observed to vary with $\phi_{s}$ on both the near and away side of the trigger particle. The away-side correlation evolves from single- to double-peak with increasing $\phi_{s}$. The near-side correlation is separated into 'jet' and 'ridge': the ridge is found to decrease with $\phi_{s}$ while the jet remains relatively constant.
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Analysis of the near-side ridge structure in pp collisions via Momentum-Kick Model
The Momentum-Kick Model can fit the near-side ridge in high-multiplicity pp collisions at 13 and 7 TeV, with multiplicity-dependent parameters and a speculative 14 TeV prediction.