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In this contribution, we explore the effects of the \(\alpha \) -cluster nuclear structure of \(^{16}\textrm{O}\) on anisotropic flow and their fluctuations in O–O collisions at \(\sqrt{s_\textrm{NN}}=7\) TeV using a hybrid CGC+hydro model based on IPGlasma + MUSIC + iSS + UrQMD framework. The results of \(\alpha \) -cluster nuclear configuration of \(^{16}\textrm{O}\) are also compared with the Woods – Saxon nuclear profile. The results show a strong increase in the ratio of triangular to elliptic flow is observed when going from the top 10–20% to the top 0–10% multiplicity class for the case with \(\alpha \) -clusters. Additionally, we find that the elliptic flow fluctuations show opposite trends with a decrease in final state multiplicity for \(\alpha \) -cluster and Woods-Saxon nuclear density profiles. We conclude that the observables related to fluctuations are sensitive to the \(\alpha \) -clustered geometry in O–O collisions.

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Anisotropic Flow Fluctuation in Presence of  \(\alpha \) -Clustered Structure of  \(^{16}\textrm{O}\) Nuclei in O–O collisions at the LHC

  • 会议论文

  • 发表日期：

    2025年

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  • Suraj Prasad,
  • Neelkamal Mallick,
  • Raghunath Sahoo,
  • Gergely Gábor Barnaföldi

摘要

In this contribution, we explore the effects of the \(\alpha \) -cluster nuclear structure of \(^{16}\textrm{O}\) on anisotropic flow and their fluctuations in O–O collisions at \(\sqrt{s_\textrm{NN}}=7\) TeV using a hybrid CGC+hydro model based on IPGlasma + MUSIC + iSS + UrQMD framework. The results of \(\alpha \) -cluster nuclear configuration of \(^{16}\textrm{O}\) are also compared with the Woods – Saxon nuclear profile. The results show a strong increase in the ratio of triangular to elliptic flow is observed when going from the top 10–20% to the top 0–10% multiplicity class for the case with \(\alpha \) -clusters. Additionally, we find that the elliptic flow fluctuations show opposite trends with a decrease in final state multiplicity for \(\alpha \) -cluster and Woods-Saxon nuclear density profiles. We conclude that the observables related to fluctuations are sensitive to the \(\alpha \) -clustered geometry in O–O collisions.