⚛️ Category

nucl-ex

72 papers

Relativistic distorted-wave analysis of the missing-energy spectrum measured with monochromatic νμν_μ-12^{12}C interactions at JSNS2^{2}

This paper analyzes the missing-energy spectrum from monochromatic neutrino-12^{12}C interactions measured by the JSNS2^2 collaboration using a relativistic distorted-wave approach with an improved spectral function, while discussing the roles of nuclear recoil, final-state interactions, and neutrino event generators in describing low-energy nuclear effects.

J. M. Franco-Patino, J. García-Marcos, V. Belocchi + 3 more2026-03-06🔬 physics

First measurement of the strong interaction scattering parameters for the K−d\mathbf{K^-d} and K+d\mathbf{K^+d} systems

This paper presents the first experimental measurement of the strong interaction scattering parameters for the K−d\rm K^-d and K+d\rm K^+d systems using femtoscopic correlation functions from Pb--Pb collisions at sNN=5.02\sqrt{s_{\rm NN}}=5.02 TeV recorded by ALICE, providing crucial benchmarks for low-energy chiral QCD dynamics.

ALICE Collaboration2026-03-06🔬 physics

Physics-Embedded Bayesian Neural Network (PE-BNN) to predict Energy Dependence of Fission Product Yields with Fine Structures

This paper introduces a physics-embedded Bayesian neural network (PE-BNN) framework that integrates an energy-independent phenomenological shell factor and WAIC-based hyperparameter optimization to accurately predict energy-dependent fission product yields with fine structures and close agreement with known nuclear shell effects.

Jingde Chen, Yuta Mukobara, Kazuki Fujio + 3 more2026-03-06🔬 physics

Experiments towards a neutron target for measurements in inverse kinematics

This paper presents experimental results validating the feasibility of a graphite cube moderator for creating a standing neutron target for inverse kinematics measurements, demonstrating strong agreement between measured and simulated neutron flux distributions for a full cube setup while highlighting discrepancies in a half-cube configuration to inform future proof-of-principle campaigns.

S. F. Dellmann, C. M. Harrington, O. R. Cantrell + 28 more2026-03-06🔭 astro-ph

Characterization of the ionization response of argon to nuclear recoils at the keV scale with the ReD experiment

The ReD experiment utilized a compact dual-phase argon Time Projection Chamber irradiated by neutrons to model-independently measure the ionization yield of argon for nuclear recoils between 2 and 10 keV, revealing higher yields at lower energies than previously observed and extending experimental coverage crucial for detecting low-mass Dark Matter.

P. Agnes, I. Ahmad, S. Albergo + 42 more2026-03-06🔭 astro-ph

The MexNICA Collaboration in the MPD-NICA Experiment at JINR: Experimental and Theoretical Achievements

This paper summarizes the achievements of the MexNICA Collaboration, established in 2016 to coordinate Mexican participation in the MPD-NICA experiment at JINR, highlighting their contributions to the development of the miniBeBe trigger detector and advances in phenomenological and theoretical studies of the baryon-rich QCD phase diagram.

Alfredo Raya, Mauricio Alvarado, Juan Anzúrez + 21 more2026-03-06⚛️ hep-ph

Elliptic flow of charged hadrons in d+Au collisions at sNN=\sqrt{s_{NN}} = 200 GeV using a multi-phase transport model

This study utilizes the AMPT model to demonstrate that the elliptic flow of charged hadrons in 200 GeV d+Au collisions is primarily driven by early-stage partonic interactions rather than hadronic rescattering, successfully reproducing experimental trends and highlighting the significance of parton scattering mechanisms in asymmetric collision systems.

Jaideep Tanwar, Ishu Aggarwal, Vipul Bairathi + 2 more2026-03-06⚛️ hep-ph

Automatic calibration of gamma-ray detectors deployed in uncontrolled environments

This paper presents a novel, low-power, software-based calibration method for gamma-ray detectors that utilizes full-spectrum analysis and Monte-Carlo modeling to maintain stable energy calibration in uncontrolled environments, effectively eliminating the need for active temperature control while decoupling instrumental drift from environmental background fluctuations.

Marco Salathe, Nicolas Abgrall, Mark S. Bandstra + 3 more2026-03-05🔬 physics

Improved Pion-Kaon Identification in Heavy-Ion Collisions with a Two-Dimensional Transformation

This paper presents a novel two-dimensional shift and rotation method that leverages the correlation between time-of-flight mass-squared and ionization energy loss to significantly improve charged pion and kaon identification in heavy-ion collisions, extending the reliable measurement range to approximately 3 GeV/cc while maintaining over 98% purity and preserving elliptic flow consistency.

Shaowei Lan, Bijun Fan, Like Liu2026-03-05🔬 physics

From Beam to Bedside: Reinforcing Domestic Supply of 99^{99}Mo/99m^{99m}Tc using Novel High-Current D+ Cyclotrons for Compact Neutron Generation and 99^{99}Mo Production

This paper proposes a novel, decentralized approach to securing the domestic supply of the medical isotope 99^{99}Mo by adapting high-current deuterium cyclotrons, originally designed for neutrino research, to generate sufficient neutrons for isotope production without relying on nuclear reactors or highly enriched uranium.

Jarrett Moon, Daniel Winklehner, Jose Alonso + 3 more2026-03-05🔬 physics

Magneto-νν: Heavy neutral lepton search using 241^{241}Pu β−β^- decays

The MAGNETO-ν\nu experiment utilized a high-statistics measurement of 241^{241}Pu β−\beta^- decays with metallic magnetic calorimeters to find no evidence for keV-scale heavy neutral leptons, thereby establishing an upper limit of ∣Ue4∣2<1.31×10−3|U_{e4}|^2 < 1.31 \times 10^{-3} at 95% confidence for an 11.5-keV HNL mixing with the electron neutrino.

C. Lee, X. Zhang, A. Kavner + 12 more2026-03-05🔬 physics

A practical approach of measuring 238^{238}U and 232^{232}Th in liquid scintillator to sub-ppq level using ICP-MS

This study presents a practical method using acid extraction and ICP-MS to measure 238^{238}U and 232^{232}Th in liquid scintillator at sub-ppq levels with nearly 100% recovery efficiency and a detection limit of 0.2–0.3 ppq, achieved through rigorous cleanliness control and validated by three standard addition techniques.

Yuanxia Li, Jie Zhao, Yayun Ding + 4 more2026-03-05🔬 physics