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Small-x structure of oxygen and neon isotopes as seen by the Large Hadron Collider

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arxiv 2312.07462 v1 pith:ZALKL2LD submitted 2023-12-12 hep-ph nucl-th

Giuliano Giacalone , Bjoern Schenke , Soeren Schlichting , Pragya Singh This is my paper · ORCID
classification hep-phnucl-th
keywords collisionscolliderenergyevolutionfuturegeometryhadronlarge
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Results on collisions of $^{16}$O nuclei performed at the Relativistic Heavy Ion Collider (RHIC) have been presented for the first time at Quark Matter 2023 by the STAR collaboration. $^{16}$O+$^{16}$O collisions are also expected to take place in the near future at the Large Hadron Collider (LHC) at much higher beam energies. We explore the potential of beam-energy-dependent studies for this system to probe small-$x$ dynamics and QCD evolution. We perform 3+1D IP-Glasma simulations to predict the rapidity dependence of the initial geometry of light-ion collisions, focusing on $^{16}$O+$^{16}$O and $^{20}$Ne+$^{20}$Ne collisions at $\sqrt{s_{\rm NN}} = 70$ GeV and 7 TeV. The choice of $^{20}$Ne is motivated by its strongly elongated geometry, which may respond differently to the effect of the high-energy evolution compared to the more spherical $^{16}$O. We find that smearing induced by soft gluon production at high energy causes mild variations in the initial-state eccentricities as a function of the collision energy. These effects could be resolved in future experiments and deserve further investigation.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Collective dynamics in heavy and light-ion collisions -- II) Determining the origin of collective behavior in high-energy collisions

    hep-ph 2024-11 conditional novelty 7.0 of 10

    A new observable, W, built from ratios of flow cumulants and transverse energies in same-nucleus collisions at RHIC and LHC, is proposed and validated as a measure of how close a collision system is to hydrodynamic behavior.

  2. Energy dependence of the deformed nuclear structure at small-$x$

    nucl-th 2024-11 conditional novelty 6.0 of 10

    JIMWLK evolution slowly drives uranium and ruthenium nuclei toward a more spherical shape, with the effect growing for smaller nuclei.

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