Quarkonium production in high energy proton-proton and proton-nucleus collisions

TL;DR

This paper reviews current experimental and theoretical insights into quarkonium production in high-energy proton-proton and proton-nucleus collisions, highlighting recent results, polarization studies, and the need for new observables to understand production mechanisms.

Contribution

It provides a comprehensive overview of recent progress and perspectives in quarkonium production research, emphasizing the importance of new observables and polarization studies.

Findings

Recent experimental results on quarkonium production in pp and pA collisions.

Emerging studies on quarkonium polarization.

Discussion on heavy-quark production across different collision types.

Abstract

We present a brief overview of the most relevant current issues related to quarkonium production in high energy proton-proton and proton-nucleus collisions along with some perspectives. After reviewing recent experimental and theoretical results on quarkonium production in pp and pA collisions, we discuss the emerging field of polarisation studies. Thereafter, we report on issues related to heavy-quark production, both in pp and pA collisions, complemented by AA collisions. To put the work in a broader perspective, we emphasize the need for new observables to investigate quarkonium production mechanisms and reiterate the qualities that make quarkonia a unique tool for many investigations in particle and nuclear physics.