A test of strangeness quantum number conservation in proton-proton collisions

Abstract

The study delves into the production of (multi-)strange hadrons in proton-proton collisions at LHC. Novel observables are proposed to distinguish between EPOS4, based on core-corona separation between a thermalised QGP phase and a vacuum phase with global strangeness conservation, and PYTHIA8.3, based on microscopic interactions between Lund strings that conserve strangeness locally. Correlations between a $\varphi$ meson and (multi-)strange hadrons are shown to be an excellent discriminator between the two types of models.

12 pages, 8 figures, new version for journal submission

References in corpus (5)

• The equation of state in (2+1)-flavor QCD
• Core-Corona Separation in Ultra-Relativistic Heavy Ion Collisions
• Multiplicity dependence of (multi-)strange hadron production in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Diffractive and non-diffractive wounded nucleons and final states in pA collisions
• Setting the string shoving picture in a new frame