931 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.
This study utilizes the HYDJET++ model to investigate how nuclear deformation parameters (, ) and surface diffuseness () influence charged hadron multiplicity and elliptic flow in symmetric isobaric and collisions at GeV, revealing distinct dependencies on collision geometry (tip-tip vs. body-body) that are compared with STAR experimental data.
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 Sn in the Tin isotopic chain, highlighting the need for improved theoretical methods and new experimental data to better constrain nuclear forces.
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.
This study employs Bayesian inference to incorporate longitudinal spin polarization of 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.
This paper presents a parameter-free microscopic framework that successfully predicts angular momentum distributions and photon multiplicities for neutron-induced fission of U and Pu, demonstrating that theoretical models are now quantitatively competitive with phenomenological approaches.
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 twisted mass fermion ensemble to reconstruct the valence PDFs and compare them with existing theoretical and phenomenological determinations.
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.
This paper compares three qubit-mapping strategies within the Variational Quantum Eigensolver (VQE) framework to study the ground states of B and C nuclei, demonstrating that the Slater determinant (SD) mapping yields the highest accuracy on quantum hardware while the charge-symmetry adapted (cSD) mapping offers superior qubit efficiency for scaling to complex nuclei.
This study investigates how self-interacting fermionic dark matter influences hybrid and twin stars within a two-fluid gravitational framework, revealing that dark matter's effect on quark matter formation and stellar stability depends on its mass and fraction, potentially shifting the nucleon-to-quark transition to higher densities and obscuring quark matter signatures in current neutron star observations.
This paper utilizes an analytically tractable model to demonstrate that while the Centrality Bin Width Correction (CBWC) can effectively suppress volume fluctuations in (net-)proton cumulant measurements, it may also fail and produce misleading results under specific correlation conditions.