# A CGC/saturation approach for angular correlations in proton-proton scattering

## TL;DR

This paper extends a model to calculate azimuthal angle correlations in proton-proton scattering, showing that Bose-Einstein correlations can explain observed angular correlations without invoking quark-gluon plasma formation.

## Contribution

The authors generalize their model to describe azimuthal correlations in proton-proton collisions, emphasizing the role of Bose-Einstein correlations over final state interactions.

## Key findings

- Calculated $v_n$ values agree with experimental data
- Energy and multiplicity independence of correlations
- Bose-Einstein correlations explain angular correlations

## Abstract

We generalized our model for the description of hard processes, and calculate the value of the azimuthal angle correlations ( Fourier harmonics $v_n$ ), for proton-proton scattering.The energy and multiplicity independence, as well as the value of $v_n$, turn out the be in accord with the experimental data, or slightly larger. Therefore, before making extreme assumptions on proton-proton collisions, such as the production of quark-gluon plasma in the large multiplicity events, we need to explain how these effect theBose-Einstein correlations which are so large, that have to be taken into account, and which are able to describe the angular correlations in proton-proton collisions, without including final state interactions