⚛️ Category

nucl-th

1401 papers

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.

⚛️ nuclear theory

Accessing Exotic Hadronic States via Charmed-Meson Femtoscopy in Relativistic Heavy-Ion Collisions

This paper demonstrates that relativistic heavy-ion collisions, simulated via the PHSD transport approach and CATS correlation analysis, provide a superior environment compared to proton-proton collisions for studying charmed-meson interactions and probing exotic hadronic states through femtoscopic correlations due to enhanced charm production, reduced relative momenta, and suppressed initial-state effects.

Jiaxing Zhao, Taesoo Song, Elena Bratkovskaya, Joerg Aichelin2026-06-01
⚛️ nuclear theory

Deeply bound dibaryon d∗(2380)d^*(2380) from meson-exchange saturation ΔΔ\Delta\Delta effective field theory

This paper proposes an RG-improved effective field theory framework that reorganizes short-range dynamics by integrating out meson-exchange degrees of freedom, successfully describing the deeply bound d∗(2380)d^*(2380) dibaryon as a ΔΔ\Delta\Delta bound state with a binding energy consistent with experimental data and large-NcN_c expectations.

Prin Sawasdipol, Chinadanai Bubpatate, Daris Samart2026-06-01
⚛️ nuclear theory

Sensitivity of jet quenching to the initial state in heavy-ion collisions

By employing resummation schemes to derive analytical rates for radiative energy loss in evolving backgrounds, this paper demonstrates that strong jet quenching requires a medium equilibration time longer than its mean free path and reveals that initial-state evolution with weak jet coupling typically enhances azimuthal asymmetry for a given suppression factor.

Souvik Priyam Adhya, Konrad Tywoniuk2026-05-29
⚛️ nuclear theory

Effects of Geometric configuration in relativistic isobaric collisions at sNN=200\sqrt{s_{NN}}=200 GeV

This study utilizes the HYDJET++ model to investigate how nuclear deformation parameters (β2\beta_2, β3\beta_3) and surface diffuseness (aa) influence charged hadron multiplicity and elliptic flow in symmetric isobaric 96Ru+96Ru{}^{96}\mathrm{Ru}+{}^{96}\mathrm{Ru} and 96Zr+96Zr{}^{96}\mathrm{Zr}+{}^{96}\mathrm{Zr} collisions at sNN=200\sqrt{s_{NN}}=200 GeV, revealing distinct dependencies on collision geometry (tip-tip vs. body-body) that are compared with STAR experimental data.

Akash Das, Satya Ranjan Nayak, B. K. Singh2026-05-29
⚛️ nuclear experiments

Ab initio calculations of nuclear charge radii across and beyond 132{}^{132}Sn: Putting chiral EFT nuclear interactions to the test

This study employs ab initio Bogoliubov coupled cluster calculations to demonstrate that current chiral effective field theory interactions fail to simultaneously reproduce absolute charge radii, isotopic shifts, and the kink at 132^{132}Sn in the Tin isotopic chain, highlighting the need for improved theoretical methods and new experimental data to better constrain nuclear forces.

Pepijn Demol, Urban Vernik, Thomas Duguet, Alexander Tichai2026-05-29
⚛️ nuclear theory

Isentropic hybrid stars in the Nambu-Jona-Lasinio model: effects of neutrino trapping

This paper investigates the thermodynamics and stellar properties of isentropic hybrid stars using a Nambu-Jona-Lasinio model for quark matter and a covariant density functional for hadronic matter, revealing that neutrino trapping significantly alters particle composition, delays the onset of deconfinement to higher densities, and results in hybrid stars with larger radii and slightly higher maximum masses compared to their cold, neutrino-free counterparts.

Andrea Sabatucci, Armen Sedrakian2026-05-29
⚛️ nuclear theory

Bayesian constraints on the transport coefficients η/s\eta/s and ζ/s\zeta/s from spin polarization in relativisitic heavy-ion collisions

This study employs Bayesian inference to incorporate longitudinal spin polarization of Λ\Lambda hyperons alongside conventional bulk observables in Pb+Pb collisions at 5.02 TeV, demonstrating that while current uncertainties prevent a statistically significant shift in the extracted bulk viscosity, spin polarization serves as a valuable complementary probe for constraining quark-gluon plasma transport properties.

Sushant K. Singh, Eduardo Grossi, Francesco Becattini2026-05-29
⚛️ lattice

Higher Mellin Moments of the Unpolarized PDF of the Pion and the Kaon from Lattice QCD

This paper presents lattice QCD results for the first four Mellin moments of the unpolarized parton distribution functions of the pion and kaon, computed using a physical-mass Nf=2+1+1N_f=2+1+1 twisted mass fermion ensemble to reconstruct the valence PDFs and compare them with existing theoretical and phenomenological determinations.

Constantia Alexandrou (Univ. of Cyprus,The Cyprus Inst.), Simone Bacchio (The Cyprus Inst.), Priyajit Jana (Univ. of Cyp (…)2026-05-29
⚛️ nuclear theory

The polarization of thermal dileptons emitted in high-energy heavy-ion collisions

This paper presents a comprehensive framework combining next-to-leading-order spectral functions and iEBE-MUSIC hydrodynamic simulations to demonstrate that thermal dilepton polarization in LHC Pb+Pb collisions is a sensitive probe of quark-gluon plasma properties, revealing its dependence on collision frames, pre-equilibrium effects, and establishing a direct mapping between dielectron and dimuon polarization.

Han Gao, Xiang-Yu Wu, Charles Gale, Greg Jackson, Sangyong Jeon2026-05-29