Limiting fragmentation in heavy-ion stopping?

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Based on a nonequilibrium–statistical relativistic diffusion model that is consistent with quantum chromodynamics (QCD), we investigate baryon stopping in relativistic heavy-ion collisions at SPS, RHIC, and LHC energies. The net-proton rapidity distributions of the individual fragments exhibit a scaling behaviour similar to limiting fragmentation (LF) that is related to geometric scaling in the colour-glass condensate (CGC) and depends upon the gluon saturation scale. Forward-angle net-proton data at energies reached at the LHC are required to verify the prediction.




Hoelck, J., Hiyama, E., & Wolschin, G. (2023). Limiting fragmentation in heavy-ion stopping? Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 840.

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