The effect of quark coalescence on conical signals

TL;DR

This paper investigates how quark coalescence during hadronization enhances conical signals in high-energy collisions, making them more resilient to thermal effects and influencing baryon/meson scaling.

Contribution

It demonstrates that partonic coalescence amplifies conical signals and examines the impact of resonance decays and non-collinearity on these signals.

Findings

Coalescence transfers partons to higher transverse momentum, strengthening conical signals.

The effect persists over large momentum bins and accounts for non-collinearity and Wigner function width.

Resonance decays influence the observed conical signals.

Abstract

We explore the effect of hadronization by partonic coalescence on a "conical" signal at the partonic level. We show that, by transferring partons from a lower to a higher $p_T$, coalescence makes the conical signal stronger and hence less susceptible to thermal smearing, provided the signal is integrated over a large momentum bin and effects such as non-collinearity and a finite Wigner function width are taken into account. We explore the role of this effect in baryon/meson scaling and calculate the effect of resonances decays on such a conical signal.