Geometrical scaling in hadronic collisions

TL;DR

This paper demonstrates that transverse momentum spectra in proton-proton and nucleus-nucleus collisions exhibit geometrical scaling, linking high-energy particle physics phenomena across different collision types and energies.

Contribution

It extends the concept of geometrical scaling from deep inelastic scattering to hadronic collisions at LHC and RHIC energies, showing its broader applicability.

Findings

p_T spectra in pp collisions show geometrical scaling

Scaling onset observed in nucleus-nucleus collisions at RHIC

Links between different collision types established

Abstract

We show that the p_T spectra measured in pp collisions at the LHC exhibit geometrical scaling introduced earlier in the context of deep inelastic scattering. We also argue that the onset of geometrical scaling can be seen in nucleus-nucleus collisions at lower RHIC energies.