⚛️ Category

nucl-ex

807 papers

Nucl-Ex represents the dynamic frontier where scientists probe the fundamental building blocks of matter through high-energy experiments. By smashing particles together at incredible speeds or observing rare cosmic events, researchers uncover the forces that govern our universe and test the limits of our current understanding of physics.

At Gist.Science, we ensure these breakthroughs reach a broader audience by processing every new preprint in this field directly from arXiv. For each study, we provide both a clear, plain-language explanation of the core discoveries and a detailed technical summary for those seeking deeper insights. Below are the latest papers in nuclear experiment research, curated to help you stay informed on the latest developments from the lab.

⚛️ nuclear experiments

Probing the inner disk edge of rotating neutron stars with dipole excitations in finite nuclei

This paper demonstrates that constraining the nuclear symmetry energy using electric dipole polarizability measurements from finite nuclei significantly reduces uncertainties in the mass, radius, and orbital properties of the innermost stable circular orbit around rapidly rotating neutron stars, thereby enabling more precise independent mass estimates through kilohertz quasi-periodic oscillations.

P. S. Koliogiannis, N. Paar2026-10-28
⚛️ nuclear experiments

Particle-dependent radioluminescence color response of Eu-doped CaF2_2 associated with energy-loss density

This study demonstrates that the radioluminescence color ratio of Eu-doped CaF2_2 systematically varies with energy-loss density across different ion species, showing a two-fold increase from H to C ions before plateauing at higher densities, thereby providing foundational data for wavelength-resolved particle discrimination.

T. Iida, M. Yoshino, T. Moriguchi, A. Ozawa, S. Sugi, M. Mikawa, M. Mitsui, H. Kobayashi, Y. Saito, R. Iwamoto, K. J. Ki (…)2026-10-28
⚛️ nuclear experiments

Optimization of 99mTc proton-induced production by means of cross-section measurements of technetium radioisotopes from molybdenum targets

This study optimizes the accelerator-based production of the medical radionuclide 99m^{99m}Tc by measuring proton-induced cross-sections on molybdenum targets, identifying 16 MeV protons and 0.5 mm enriched 100^{100}Mo targets as ideal conditions to achieve a yield of 1.7 GBq/μ\muA with radionuclidic purity compliant with European Pharmacopoeia standards.

Dellepiane Gaia, D'Uva Sofia, Eggimann Lars, Gottstein Alexander, Juillerat Samuel, Kasanda Eva, Mateu Isidre, Scampoli (…)2026-10-28
⚛️ nuclear experiments

Improved nonflow control for multiparticle correlators and system-size-dependent evolution from OO to Pb--Pb collisions at the LHC

This paper validates an improved nonflow subtraction framework using the v1v_1-estimator-based scaling method to reliably extract symmetry plane correlators and symmetric cumulants, enabling a systematic comparison of system-size-dependent evolution from light-ion (OO) to heavy-ion (Pb--Pb) collisions at the LHC.

Neelkamal Mallick, Suraj Prasad2026-10-28
⚛️ nuclear experiments

Nuclear Data Evaluation Utilizing Bayesian Monte Carlo Methods

This paper utilizes Bayesian Monte Carlo methods to iteratively update TALYS 2.0 model parameters against experimental copper reaction data, establishing physically defensible uncertainty bands for proton-induced cross sections and demonstrating the potential of neural network surrogates to screen future nuclear data evaluations.

Catherine E. Apgar, Lee A. Bernstein, Yun-Hsuan Lee, Wilson Lin, Alan B. McIntosh, Dmitri G. Medvedev, Jonathan T. Morre (…)2026-10-28
⚛️ nuclear experiments

Measurement of antideuteron and net-Λ\Lambda number fluctuations at the Large Hadron Collider

This paper presents the first measurement of antideuteron–net-Λ\Lambda number correlations in Pb–Pb collisions at the LHC, which align with statistical hadronization model predictions and thereby confirm that the previously observed deviation in antideuteron–antiproton correlations stems from nucleosynthesis processes rather than the hadronization mechanism.

ALICE Collaboration2026-10-28
⚛️ nuclear experiments

Evidence of partonic collectivity in OO collisions through the measurement of ϕ\phi, KS0^0_{\rm S}, and Λ\Lambda elliptic flow

This paper presents the first measurement of elliptic flow for ϕ\phi, KS0^0_{\rm S}, and Λ\Lambda hadrons in O+O collisions at 5.36 TeV, revealing mass ordering at low transverse momentum and a significant baryon-meson splitting at intermediate transverse momentum that supports the existence of partonic collectivity and quark recombination in small collision systems.

ALICE Collaboration2026-10-28
⚛️ nuclear experiments

Methodology for Analyzing Proton Multiplicity Fluctuations with Azimuthal Partitions in Heavy-Ion Collisions

This paper proposes and validates a novel methodology using the Δσ2\Delta\sigma^2 observable to analyze proton multiplicity fluctuations in azimuthal partitions, demonstrating its potential to quantify clustering tendencies and extract interaction parameters relevant to the first-order phase transition in heavy-ion collisions through simulations with AMPT and MUSIC+FIST models.

Dylan Neff, Zhongling Ji, Roli Esha, Gang Wang, Huan Huang2026-10-27
⚛️ nuclear experiments

The Pion Parton Distribution Puzzle in the High x Region

This paper presents a new theoretical approach using spectral function representation and phenomenological Light-Front wave functions to calculate pion parton distribution functions, revealing that the valence region is dominated by a highly virtual quark-antiquark cluster with minimal residual mass, a configuration that successfully reproduces the observed (1−x)(1-x) behavior at the x→1x \to 1 limit and links the PDF's peak characteristics to its analytic behavior near unity.

Misak Sargsian2026-10-27