Recent Results on Strangeness Production from CERN Experiment NA49

TL;DR

This paper presents recent experimental results on strangeness production in high-energy nuclear collisions from CERN's NA49 experiment, including measurements of kaons, pions, and cascade baryons across various collision systems and energies.

Contribution

It provides new measurements of strange mesons and baryons in different collision systems, expanding understanding of strangeness production mechanisms in nuclear reactions.

Findings

Charged kaon and pion yields measured at 40 AGeV Pb+Pb collisions.

Strange meson yields vary with collision energy and system size.

First measurements of cascade baryons in p+p and p+Pb collisions.

Abstract

New results from NA49 on the production of strangeness in elementary and nuclear reactions are presented. New measurements of charged kaon and pion production have been obtained from 40 AGeV Pb+Pb collisions. The evolution of strange meson yields in nucleus-nucleus interactions is studied as a function of collision energy and system size. Cascade baryon yields are presented for a wide range of hadronic interactions including first measurements in p+p and centrality controlled p+Pb collisions.