Large elliptic flow in low multiplicity pp collisions at LHC energy $\sqrt{s}$=14 TeV

TL;DR

This paper investigates the potential for observing significant elliptic flow in low multiplicity proton-proton collisions at 14 TeV LHC energy, suggesting hot spot interactions can produce detectable flow signals.

Contribution

It introduces the idea that hydrodynamical evolution of hot spots in low multiplicity pp collisions can generate observable elliptic flow.

Findings

Elliptic flow can be generated in low multiplicity events.

Hydrodynamical evolution of hot spots produces measurable flow signals.

4th order cumulant analysis can detect the flow.

Abstract

We explore the possibility of observing elliptic flow in low multiplicity events in central pp collisions at LHC energy, $\sqrt{s}$=14 TeV. It is assumed that the initial interactions produces a number of hot spots. Hydrodynamical evolution of two or more hot spots can generate sufficiently large elliptic flow to be accessible experimentally in 4-th order cumulant analysis.