• Accepted Paper

From lead to helium: Potential for a measurement of jet quenching in the smallest collision systems

Coleridge Faraday, Ben Bert, Jack Brand, Werner Vogelsang, and W. A. Horowitz

Phys. Rev. Lett. - Accepted 16 October, 2026

DOI: https://doi.org/10.1103/ykmp-fy57

Abstract

We present perturbative quantum chromodynamics (pQCD) predictions for the modification to the yield of high-momentum particles in very light ion collisions - 10B+10B, 6Li+6Li, 4He+4He, and 3He+3He - both with and without medium-induced energy loss. We show that there is non-trivial suppression expected from our partonic energy loss model in symmetric systems from 208Pb+208Pb to 3He+3He and in asymmetric systems A+B, and that the energy loss scales approximately with (AB)1/3. Further, we find that deep inelastic scattering measurements in 3He and 6Li tightly constrain the nPDF baseline, making these isotopes a particularly clean environment for searching for final-state partonic energy loss induced by the formation of a quark-gluon plasma in these very small systems.

Export citation

Export citation

Choose format for download:

Download Citation

If the author has provided any supplemental materials with this article they will be available upon publication of the version of record.

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation