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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
verification ladder T0 review T1 audit T2 compute T3 formal

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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 5 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. Kinetic Theory of Quasiparticles, Retarded Correlators and Hydrodynamics

    nucl-th 2025-04 conditional novelty 6.0 of 10

    For a massive Maxwell-Boltzmann gas in the relaxation-time approximation, finite mass removes the propagating sound mode, leaving purely imaginary modes, while shear and diffusion modes stay close to the massless results.

  5. 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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