Transverse momentum fluctuations and \Delta\eta-\Delta\phi correlations in p+p interactions at the CERN SPS energies

TL;DR

This paper presents preliminary results on transverse momentum fluctuations and two-particle correlations in proton-proton collisions at CERN SPS energies, aiming to explore signals related to the QCD critical point.

Contribution

It provides new measurements of momentum fluctuations and correlation patterns in p+p interactions at SPS energies, contributing to the search for the critical point of strongly interacting matter.

Findings

Preliminary transverse momentum fluctuation data obtained.

Two-particle pseudorapidity/azimuthal correlations analyzed.

Comparison with Pb+Pb data and models discussed.

Abstract

The NA61/SHINE experiment aims to discover the critical point of strongly interacting matter and study the properties of the onset of deconfinement. These goals are to be achieved by performing a two dimensional phase diagram (T-\mu_B) scan by measurements of hadron production properties in proton-proton, proton-nucleus and nucleus-nucleus interactions as a function of collision energy and system size. Close to the critical point an increase of fluctuations is predicted. In this contribution preliminary results on transverse momentum fluctuations and two-particle pseudorapidity/azimuthal angle correlations from the NA61/SHINE energy scan of p+p collisions will be presented. These new results will be compared with NA49 data on central Pb+Pb collisions and model predictions.