Multi-strange hadron production in p+p interactions at √SNN= 17.3 GeV

Abstract

The production of multi-strange hadrons in proton-proton interactions is currently studied with the NA61/SHINE experiment at the SPS. These particles are reconstructed via their weak decay typologies, exploiting the tracking and particle identification capabilities of NA61/SHINE. New measurements of rapidity and transverse momentum spectra of Ξ−and Ξ resonances and their antiparticles are shown. The results are compared to those observed in A+A collisions as well as to model predictions.