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Revealing the harmonic structure of nuclear two-body correlations in high-energy heavy-ion collisions

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arxiv 2504.02481 v1 pith:EGGV3WUR submitted 2025-04-03 nucl-th hep-exhep-phnucl-ex

classification nucl-thhep-exhep-phnucl-ex
keywords correlationsnuclearstructurecollisionsharmonicheavy-ionhigh-energynuclei
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Smashing nuclei at ultrarelativistic speeds and analyzing the momentum distribution of outgoing debris provides a powerful method to probe the many-body properties of the incoming nuclear ground states. Within a perturbative description of initial-state fluctuations in the quark-gluon plasma, we express the measurement of anisotropic flow in ultra-central heavy-ion collisions as the quantum-mechanical average of a specific set of operators measuring the harmonic structure of the two-body azimuthal correlations among nucleons in the colliding states. These observables shed a new light on spatial correlations in atomic nuclei, while enabling us to test the complementary pictures of nuclear structure delivered by low- and high-energy experiments on the basis of state-of-the-art theoretical approaches rooted in quantum chromodynamics.

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Cited by 4 Pith papers

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

  1. Proton-proton Femtoscopy as a Probe of Short-range Structure in High-Energy O+O Collisions

    nucl-th 2026-08 conditional novelty 6.0 of 10

    In simulated 16O+16O collisions at 200 GeV, proton-proton correlations shift the extracted source radius by about 5 percent when the oxygen input contains short-range nucleon correlations, while pion-pion correlations...

  2. Angular structure of many-body correlations in atomic nuclei: From nuclear deformations to diffractive vector meson production in $\gamma A$ collisions

    nucl-th 2025-04 conditional novelty 6.0 of 10

    Random rotation of an axially deformed intrinsic nuclear state produces a lab-frame two-body correlation proportional to cos(2φ12), which can be probed in diffractive photo-nuclear vector meson production.

  3. Imprints of octupole collectivity in uranium-238 on relativistic heavy-ion flow observables

    nucl-th 2025-04 conditional novelty 6.0 of 10

    Heavy-ion flow simulations show that an octupole deformation beta3 around 0.1 in 238U reverses the v3 hierarchy in ultra-central U+U vs Au+Au collisions and suppresses the v3-delta-pT correlation, enabling a new probe...

  4. Nuclear Physics Confronts Relativistic Collisions Of Isobars

    nucl-ex 2025-07 conditional novelty 5.0 of 10

    RHIC isobar data are explained by different shapes of 96Ru and 96Zr, with 96Zr showing a large octupole deformation, so nuclear structure uncertainty, not the magnetic field, dominates the observed ratios.

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