⚛️ Category

nucl-th

1145 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.

Interrogating the composition and distribution of nuclear magnetization via the hyperfine anomaly: experiment meets nuclear and atomic theory for short-lived 47^{47}K

By combining high-precision liquid-state β\beta-NMR measurements of short-lived 47^{47}K with advanced atomic and nuclear theories, this study successfully determines the spatial distribution of nuclear magnetization and reveals a persistent overestimation of spin contributions in current nuclear models, thereby establishing a robust method for benchmarking nuclear structure theory and searching for physics beyond the Standard Model.

M. L. Bissell, M. Jankowski, A. Antušek, N. Azaryan, B. C. Backes, M. Baranowski, M. Chojnacki, K. M. Dziubinska-Kühn, 1 R. Han, A. Hurajt, B. Karg, I. Michelon, M. Pesek, M. Piersa-Siłkows (…)2026-03-23⚛️ nucl-ex

Detecting the 3D Ising model phase transition with a ground-state-trained autoencoder

This paper demonstrates that a one-class convolutional autoencoder trained exclusively on ground-state configurations can successfully detect the phase transition of the 3D Ising model and accurately recover its critical temperature and correlation-length exponent without prior knowledge of the system's physical parameters.

Ahmed Abuali, David A. Clarke, Morten Hjorth-Jensen, Ioannis Konstantinidis, Claudia Ratti, Jianyi Yang2026-03-23⚛️ nucl-th

Direct Inference of Nuclear Equation-of-State Parameters from Gravitational-Wave Observations

This paper presents a method using multilayer perceptron neural network emulators to rapidly solve Tolman-Oppenheimer-Volkoff equations within the PyCBC framework, enabling the direct inference of nuclear equation-of-state parameters from gravitational-wave data with a nearly two-orders-of-magnitude speedup and negligible loss of accuracy compared to traditional solvers.

Brendan T. Reed, Cassandra L. Armstrong, Rahul Somasundaram, Duncan A. Brown, Collin Capano, Soumi De, Ingo Tews2026-03-20⚛️ nucl-th

Anisotropic modifications to the transport phenomena and observables in a hot QCD medium at finite baryon asymmetry

This study utilizes kinetic theory within a quasiparticle model to demonstrate that expansion-induced momentum anisotropy reduces electrical and thermal conductivities in hot QCD matter, while finite baryon asymmetry enhances these conductivities relative to baryonless scenarios, thereby modulating the Lorenz number and local equilibrium properties.

Shubhalaxmi Rath2026-03-20⚛️ nucl-th

Studying the in-medium ϕϕ meson spectrum through kaons in proton-nucleus reactions

This paper utilizes the off-shell BuBUU transport model to simulate 30 GeV proton-nucleus collisions at J-PARC E88, demonstrating that while kaon mean fields influence the invariant mass spectrum, the observed signal is distinct from dilepton spectra due to kinematic thresholds, thereby highlighting the necessity of combining both kaon and dilepton channels to effectively constrain in-medium ϕ\phi meson mass shifts.

Gabor Balassa, Kazuya Aoki, Philipp Gubler, Su Houng Lee, Hiroyuki Sako, Gyorgy Wolf2026-03-20⚛️ nucl-th

Quantifying fluctuation signatures of the QCD critical point using maximum entropy freeze-out

This paper utilizes a maximum entropy freeze-out approach to quantify how non-universal mapping parameters and the distance between the critical point and the freeze-out curve influence factorial cumulants of proton multiplicities, thereby linking QCD thermodynamics near a critical point to observable event-by-event fluctuations in heavy-ion collisions.

Jamie M. Karthein, Maneesha Sushama Pradeep, Krishna Rajagopal, Mikhail Stephanov, Yi Yin2026-03-20⚛️ nucl-ex

Bulk and spectroscopic nuclear properties within an ab initio renormalized random-phase approximation framework

This study employs an ab initio renormalized random-phase approximation framework with modern chiral three-body forces to successfully calculate bulk and spectroscopic properties of closed-shell nuclei, demonstrating improved agreement with experiments by eliminating quasiboson approximation instabilities while highlighting the necessity of extending beyond the particle-hole space to resolve remaining discrepancies.

Radek Folprecht, František Knapp, Giovanni De Gregorio, Riccardo Mancino, Petr Veselý, Nicola Lo Iudice2026-03-20⚛️ nucl-th

Impact of QCD Energy Evolution on Observables in Heavy-Ion Collisions

This study demonstrates that incorporating QCD small-xx energy evolution (JIMWLK) into the IP-Glasma initial state framework significantly alters key heavy-ion collision observables, such as particle multiplicities and flow correlations, highlighting the critical necessity of nonlinear QCD evolution for accurately modeling early-stage dynamics and extracting quark-gluon plasma transport properties.

Heikki Mäntysaari, Björn Schenke, Chun Shen, Wenbin Zhao2026-03-20⚛️ nucl-ex

Single-particle strength toward N = 32: Spectroscopy of 51 Ca via the 50 Ca(d, p) reaction

This paper reports on the spectroscopy of neutron-rich 51Ca via the 50Ca(d,p) reaction, identifying single-particle states and a candidate 9/2+ excitation to provide new constraints on shell evolution in calcium isotopes through comparison with shell-model and ab initio VS-IMSRG calculations.

C. Ferrera, K. Wimmer, D. Suzuki, N. Imai, A. Jungclaus, T. Miyagi, Y. Utsuno, D. Das, T. Chillery, S. Hanai, J. W. Hwang, N. Kitamura, R. Kojima, S. Michimasa, R. Yokoyama, Y. Anuar, M. Armstrong, S. (…)2026-03-20⚛️ nucl-ex