Mid-rapidity antibaryon-to-baryon ratios in pp and Pb–Pb collisions measured by the ALICE experiment

Measurement of the antibaryon-baryon ratios (image) at mid rapidity probes the baryon transport and the degree of baryon stopping in high-energy collisions, providing insight into the collision dynamics. In this paper, we discuss the measurement of different image ratios (image, image, image) in pp collisions at image and in Pb–Pb collisions at image, as a function of charged particle multiplicity, rapidity and transverse momentum. Results from pp and Pb–Pb collisions are presented and compared to models.