LHC light-ion R_AA measurements could discriminate between scenarios with and without mini-QGP formation in pp collisions, with the largest difference predicted for carbon.
Parton energy loss in the mini quark-gluon plasma and jet quenching in proton-proton collisions
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abstract
We evaluate the medium suppression of light hadron spectra in $pp$ collisions at RHIC and LHC energies in the scenario with formation of a mini quark-gluon plasma. We find a significant suppression effect. For $p_{T}\sim 10$ GeV we obtained the reduction of the spectra by $\sim [20-30,25-35,30-40]$ % at $\sqrt{s}=[0.2, 2.76,7]$ TeV. We also discuss how this phenomenon may change the predictions for the nuclear modification factors for $AA$ and $pA$ collisions.
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Predictions for $R_{AA}$ in 5.36 TeV C+C, O+O, and Ne+Ne collisions at the LHC
LHC light-ion R_AA measurements could discriminate between scenarios with and without mini-QGP formation in pp collisions, with the largest difference predicted for carbon.