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Learning Hadron Emitting Sources with Deep Neural Networks

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arxiv 2411.16343 v2 pith:GCXZYPBQ submitted 2024-11-25 nucl-th hep-ph

Learning Hadron Emitting Sources with Deep Neural Networks

classification nucl-th hep-ph
keywords functionssourcecorrelationapproachdeepnetworksneuralproton-emitting
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The correlation function observed in high-energy collision experiments encodes critical information about the emitted source and hadronic interactions. While the proton-proton interaction potential is well constrained by nucleon-nucleon scattering data, these measurements offer a unique avenue to investigate the proton-emitting source, reflecting the dynamical properties of the collisions. In this Letter, we present an unbiased approach to reconstruct proton-emitting sources from experimental correlation functions. Within an automatic differentiation framework, we parameterize the source functions with deep neural networks, to compute correlation functions. This approach achieves a lower chi-squared value compared to conventional Gaussian source functions and captures the long-tail behavior, in qualitative agreement with simulation predictions.

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Cited by 7 Pith papers

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

  1. Reconstructing rare particle source by femtoscopic correlations

    hep-ph 2026-05 unverdicted novelty 7.0

    A statistical method expresses pair correlations as ensemble averages over single-particle-conditioned kernels, enabling event-by-event reconstruction of rare-particle emission sources, demonstrated on simulated J/ψ d...

  2. Reconstructing rare particle source by femtoscopic correlations

    hep-ph 2026-05 conditional novelty 7.0

    A statistical method reconstructs single-particle emission sources for rare particles directly from conditioned correlation kernels in femtoscopy, demonstrated on simulated J/ψ sources in pp collisions with 13% system...

  3. Relaxation Kernel, Spectral Dissipation, and Global Convergence of Blahut--Arimoto Dynamics

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    Establishes chi^2-dissipation identities, spectral decomposition of Lyapunov functions, and explicit KL convergence factors for Blahut-Arimoto dynamics.

  4. Relaxation Kernel, Spectral Dissipation, and Global Convergence of Blahut--Arimoto Dynamics

    cs.IT 2026-04 unverdicted novelty 7.0

    The Blahut-Arimoto dynamics converges globally to nondegenerate stationary states because its free-energy decrease is controlled by a relaxation kernel that equals the Fisher-Rao Hessian and produces local spectral co...

  5. Large amplification of the isospin-dependence of proton emitting source size in radioactive heavy-ion collisions: a signal of n-p correlation

    nucl-ex 2026-04 unverdicted novelty 6.0

    Proton emitting source size is amplified by 24% in neutron-rich versus neutron-deficient tin collisions, revealing a beyond-mean-field short-range n-p correlation effect.

  6. Finding Low Star Discrepancy 3D Kronecker Point Sets Using Algorithm Configuration Techniques

    cs.NE 2026-04 unverdicted novelty 5.0

    Optimizing the two Kronecker parameters with irace yields new state-of-the-art L∞ star discrepancy for 3D point sets of size at least 500 and for ranges of sizes.

  7. Solving the Inverse Source Problem in Femtoscopy with a Toy Model

    hep-ph 2025-12 unverdicted novelty 5.0

    Tikhonov regularization reconstructs the input Gaussian source function from correlation functions generated by a square-well toy model in femtoscopy.