Soft interactions at high energy

TL;DR

This paper discusses the complex interplay between soft and hard processes in high-energy interactions, highlighting that current scales do not allow a clear separation, with soft and hard processes increasingly intertwined as energy scales grow.

Contribution

It provides an operational perspective on the difficulty of disentangling soft and hard interactions at high energies, emphasizing the gradual transition rather than a clear boundary.

Findings

Soft and hard processes are intertwined at current scales.

Increasing energy scales lead to more hard processes.

Complete separation of soft and hard interactions remains elusive.

Abstract

Soft interactions are not easily disentangled from hard ones. In an operational definition of soft and hard processes one finds that at presently analyzed scales there is an interplay of soft and hard processes. As the scale increases, so does the amount of hard processes. So far, nothing is as soft nor as hard as we would like.