News on spectra from the NA61/SHINE experiment

TL;DR

This paper reviews recent experimental results from the NA61/SHINE experiment at CERN, focusing on hadron production in various collision systems to investigate the properties of strongly interacting matter and signals of deconfinement.

Contribution

It provides new measurements of particle spectra in p+p, Be+Be, and Ar+Sc collisions across different energies, contributing to the understanding of the onset of deconfinement.

Findings

Observation of spectra shapes in different collision systems

Identification of signatures related to deconfinement onset

Comparison with world data reveals new insights

Abstract

NA61/SHINE is a fixed target experiment at the CERN Super-Proton-Synchrotron. The main goals of the experiment are to discover the critical point of strongly interacting matter and study the properties of the onset of deconfinement. In order to reach these goals, a study of hadron production properties is performed in nucleus-nucleus, proton-proton and proton-nucleus interactions as a function of collision energy and size of the colliding nuclei. In this talk, recent results on particle production in p+p interactions, as well as Be+Be and Ar+Sc collisions in the SPS energy range are reviewed. Transverse momentum, transverse mass and rapidity spectra obtained with various analysis methods are presented. Surprises in studies of signatures of onset of deconfinement are discussed. The results are compared with available world data.