# Soft modifications to jet fragmentation in high energy proton-proton collisions

## TL;DR

This paper explores how soft collective effects in proton-proton collisions can lead to modifications in jet fragmentation, proposing new observables to detect jet quenching in small systems.

## Contribution

It introduces a model linking soft collectivity to jet fragmentation modifications and proposes new observables for jet quenching detection in proton-proton collisions.

## Key findings

- Model predicts soft collective features affect jet fragmentation
- Proposes new observables for jet quenching detection
- Suggests potential signs of quark-gluon plasma in small systems

## Abstract

The discovery of collectivity in proton-proton collisions, is one of the most puzzling outcomes from the two first runs at LHC, as it points to the possibility of creation of a Quark-Gluon Plasma, earlier believed to only be created in heavy ion collisions. One key observation from heavy ion collisions is still not observed in proton-proton, namely jet-quenching. In this letter it is shown how a model capable of describing soft collective features of proton-proton collisions, also predicts modifications to jet fragmentation properties. With this starting point, several new observables suited for the present and future hunt for jet quenching in small collision systems are proposed.