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Energy loss baseline for light hadrons in oxygen-oxygen collisions at sqrt{s_NN}=5.36\,TeV
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Energy loss baseline for light hadrons in oxygen-oxygen collisions at sqrt{s_NN}=5.36\,TeV
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I present predictions for inclusive charged hadron spectra in minimum-bias proton-proton and oxygen-oxygen collisions at a centre-of-mass energy of $\sqrt{s_\mathrm{NN}} = 5.36\,\text{TeV}$, assuming no final-state interactions. Using next-to-leading order perturbative QCD matrix elements, along with state-of-the-art (nuclear) parton distribution and fragmentation functions, I establish a baseline for the nuclear modification factor $R^h_\text{AA}$ in oxygen-oxygen collisions in the absence of quenching. Theoretical uncertainties in this baseline are found to be substantial for transverse momenta below $20\,\text{GeV}$. In the intermediate range $20\,\text{GeV} \lesssim p_T^h \lesssim 70\,\text{GeV}$, these uncertainties are significantly reduced to approximately 5\%. At higher momenta ($p_T^h \gtrsim 70\,\text{GeV}$), however, predictions exhibit a marked spread due to differences between fragmentation functions, reflecting varying assumptions about isospin symmetry. Finally, I show that considering neon-neon collisions in the initial state or neutral pions in the final state does not appreciably change the nuclear modification factor.
Forward citations
Cited by 6 Pith papers
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Nuclear Modification of $\pi^0$ Production in OO Collisions with ALICE
ALICE presents the first R_OO for π⁰ in OO collisions, finding up to 4σ suppression relative to pp collisions and 2.4σ deviation from cold nuclear matter model predictions.
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Evidence for parton energy loss in oxygen$-$oxygen collisions at $\mathbf{\sqrt{s_{\rm NN}}=5.36}$ TeV
Neutral-pion nuclear modification factors in OO collisions exhibit suppression at 4.9 sigma after subtracting cold-nuclear-matter effects via pO data, consistent with parton energy loss models.
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System-size dependence of charged-particle suppression in ultrarelativistic nucleus-nucleus collisions
First neon-neon R_AA measurement shows charged-particle suppression increasing monotonically with nuclear size across oxygen, neon, xenon, and lead at LHC energies.
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Observation of suppressed charged-particle production in ultrarelativistic oxygen-oxygen collisions
First measurement of the nuclear modification factor R_AA in OO collisions at 5.36 TeV shows suppression with a minimum of 0.69 at p_T around 6 GeV, favoring models with parton energy loss.
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Bayesian Constraints on Pre-Equilibrium Jet Quenching and Predictions for Oxygen Collisions
Bayesian constraints on early-time jet quenching from large collision systems yield predictions of measurable energy loss in oxygen-oxygen collisions.
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Light-Ion Collisions: Bridging Small and Large QCD Systems
Light-ion collisions at the LHC provide evidence of quark-gluon plasma formation in small systems, bridging proton-proton and heavy-ion regimes.
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