Modified Knudsen ansatz and elliptic flow in $\sqrt{s}$=14 TeV pp collisions

TL;DR

This paper predicts elliptic flow in high-energy proton-proton collisions at 14 TeV, considering hot spot formation and viscous effects, with potential experimental observability in high-multiplicity events.

Contribution

It introduces a modified Knudsen ansatz accounting for entropy generation, providing new predictions for elliptic flow based on hot spot configurations in pp collisions.

Findings

Flow depends on hot spot number and size.

Flow is detectable in high-multiplicity events.

Predicted flow is accessible via 4th order cumulant method.

Abstract

Assuming that hot spots are formed in initial pp collisions, in a modified Knudsen ansatz, which accounts for the entropy generation in viscous fluid evolution, we have given predictions for elliptic flow in $\sqrt{s}$=14 TeV pp collisions. Predicted flow depends on the number of hot spots and hot spot sizes. If two to four hot spots of size $\approx$0.1 fm are formed in initial pp collisions, in events with multiplicity $n_ {mult}\approx$10-15, modified Knudsen ansatz predicted flow is accessible experimentally in 4th order cumulant method.