nucl-th papers | Gist.Science

Nuclear theory sits at the fascinating intersection of particle physics and the forces that hold our universe together. This field explores how protons and neutrons bind inside atomic nuclei, seeking to understand the fundamental interactions that govern matter at its most dense and energetic levels. While the mathematics involved can be incredibly complex, the core questions are deeply human: how does the universe function at its smallest scales, and what happens when we push matter to its limits?

At Gist.Science, we make these cutting-edge discoveries accessible by processing every new preprint published in this category on arXiv. Our team transforms dense academic manuscripts into clear, plain-language summaries alongside detailed technical overviews, ensuring that both experts and curious readers can grasp the latest breakthroughs without getting lost in the jargon. Below are the latest papers in nuclear theory, distilled and ready for you to explore.

Long-standing problem: The nuclear level density angular-momentum dependence and isomeric data assessment

This paper highlights that recent experimental challenges in describing isomeric cross sections for Tc isotopes reveal significant limitations in current nuclear level density models when using standard rigid-body moment of inertia values, thereby underscoring the urgent need for direct measurements of average resonance spacings to validate and improve angular-momentum dependence assessments.

M. Avrigeanu, E. Šimečková, J. Mrázek, X. Ledoux, J. Novak, M. Štefánik, M. Ansorge, A. Cassisa, J. Kozic, C. Costache, V. Avrigeanu2026-04-03⚛️ nucl-th

Femtoscopy of Strange Baryons in Heavy-ion Collisions at RHIC-STAR

The STAR experiment at RHIC presents high-statistics femtoscopy results from Isobar and Au+Au collisions, revealing an attractive interaction in $\Xi$ - $p$ pairs and a bound state in $\Omega$ - $p$ pairs through the analysis of final-state correlations.

Boyang Fu2026-04-03⚛️ nucl-ex

Heavy-Flavor Fragmentation: The QCD Portal to Exotic Matter

This paper presents the first systematic investigation of heavy-flavor fragmentation into fully charmed or bottomed tetraquarks across scalar, axial vector, and tensor configurations using a nonrelativistic QCD framework, while propagating uncertainties from long-distance matrix elements to advance the understanding of exotic matter formation.

Francesco Giovanni Celiberto2026-04-03⚛️ nucl-ex

Collective quantum tunneling with time-dependent generator coordinate method

Inspired by McGlynn and Simenel's work, this study demonstrates that the time-dependent generator coordinate method (TDGCM), utilizing real-time mean-field states as generators, successfully overcomes the spurious self-trapping effect in interacting two-particle tunneling to reproduce exact quantum dynamics while providing critical insights into collective versus single-particle behaviors.

Wenmin Deng, Guangping Chen, Ganlong Ding, Sibo Wang, Jing Peng, Haozhao Liang2026-04-03⚛️ nucl-th

Tackling inverse problems for PDFs from lattice QCD

This presentation outlines the integration of recent advancements in extracting parton distribution functions (PDFs) from lattice QCD with established methods for solving inverse problems in spectral function reconstruction.

Alexander Rothkopf2026-04-03⚛️ hep-lat

Gauge invariant momentum broadening of hard probes in glasma

This paper employs a gauge-invariant formulation to compute the transverse momentum broadening coefficient $\hat{q}$ for hard probes in the glasma, confirming that the results are quantitatively consistent with previous simplified calculations and validating the significant role of the glasma in jet quenching.

Margaret E. Carrington, Bryce T. Friesen, Stanislaw Mrowczynski2026-04-03⚛️ nucl-th

Chiral-scale effective field theory for dense and thermal systems

This paper presents properties of nuclear matter using a chiral-scale effective field theory anchored in QCD symmetries, demonstrating that compact star matter's sound velocity can saturate the conformal limit with an intermediate density peak, while extending the framework to thermal systems via a chiral-scale density counting rule up to $\mathcal{O}(k_c^{12})$ .

Yong-Liang Ma2026-04-03⚛️ nucl-th

Formal definition of intrinsic collectivity in the continuum via Takagi factorization of the Jost-RPA S-matrix residue

This paper proposes a formal framework utilizing Takagi factorization of the Jost-RPA S-matrix residue to define intrinsic collectivity in continuum resonance states, introducing new indices that reveal hidden collective modes in $^{16}$ O which are decoupled from their observable line shapes.

Kazuhito Mizuyama2026-04-03⚛️ nucl-th

Vector quarkonia at the LHC with JETHAD: A high-energy viewpoint

This review extends the study of inclusive vector quarkonium production at the LHC using the JETHAD method and a hybrid NLL/NLO $^+$ factorization approach, demonstrating enhanced stability in forward rapidity regions and offering a unique opportunity for precision high-energy QCD studies and resolving the quarkonium production puzzle.

Francesco Giovanni Celiberto2026-04-02⚛️ nucl-ex

Exotic tetraquarks at the HL-LHC with JETHAD: A high-energy viewpoint

This paper reviews the semi-inclusive hadroproduction of neutral hidden-flavor tetraquarks at the HL-LHC using the JETHAD framework and novel TQHL1.0 fragmentation functions, demonstrating that high-energy observables for these exotic states remain stable under radiative corrections and providing a crucial link between QCD resummation techniques and exotic matter research.

Francesco Giovanni Celiberto2026-04-02⚛️ nucl-ex

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