670 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.
This paper presents a one-dimensional femtoscopic analysis of correlations in Pb$-$Pb collisions at TeV using ALICE data, revealing source characteristics consistent with collective expansion and providing a high-energy baseline compatible with previous measurements and hydrokinetic model predictions.
The ALICE Collaboration reports the first measurement of isolated-prompt photon-hadron azimuthal correlations in Pb-Pb collisions at TeV down to a photon transverse momentum of 18 GeV/c, observing a strong suppression of associated hadron yields in central collisions that is compared with theoretical models and results from other experiments.
This paper presents a new evaluation procedure for independent and cumulative fission product yields in the spontaneous fission of Cf, utilizing a Bayesian Kalman filter to integrate experimental data with the Hauser-Feshbach Fission Fragment Decay model to produce mean values, full covariances, and consistent predictions for prompt and delayed neutron and -ray multiplicities.
This paper provides direct experimental evidence for quark confinement within the proton by demonstrating that the force between quarks is attractive and constant across a wide range of positions, derived from available data and Quantum Chromodynamics.
This paper employs the local operator-product-expansion method to independently derive twist-2 relations, specifically a Wandzura-Wilczek-like relation and a Burkhardt-Cottingham-like sum rule, for the twist-3 tensor-polarized distribution function of spin-1 hadrons, thereby providing a robust theoretical foundation for upcoming electron-deuteron deep inelastic scattering experiments at JLab.
This paper validates a Long Short-Term Memory (LSTM) neural network approach that successfully identifies jet quenching in heavy-ion collisions by leveraging jet substructure and parton shower history, demonstrating robust performance even when accounting for detector effects and generalizing to untrained observables.
The CMS experiment reports the first measurement of the inclusive top quark pair production cross section in lead-lead collisions at = 5.36 TeV, finding results consistent with next-to-next-to-leading order perturbative QCD predictions and providing the first investigation of top quark production dependence on collision impact parameter.
This study reveals that surrogate reactions used to study Pu(n,f) exhibit hindered prompt-neutron evaporation due to entrance-channel-induced angular momentum, highlighting significant limitations in applying surrogate-derived data to nuclear technology.
Using an extended isospin- and momentum-dependent Boltzmann-Uehling-Uhlenbeck transport model, this study demonstrates that incorporating momentum dependence in the nuclear mean field is essential for accurately reproducing STAR experimental data on proton, kaon, and production in Au+Au collisions at GeV, whereas momentum-independent models only partially describe the results.
This paper presents the first calculation of next-to-next-to-leading order (NNLO) QCD radiative corrections for deeply virtual pion production, demonstrating that these two-loop corrections substantially improve the agreement between perturbative QCD predictions and experimental data from JLab while also refining theoretical descriptions of transverse single-spin asymmetries for future facilities like the EIC and EicC.