Hep-Ph explores the fundamental forces that govern how particles interact and behave at the smallest scales imaginable. This field bridges the gap between theoretical predictions and experimental reality, helping scientists understand the building blocks of our universe without getting lost in complex mathematics. Whether investigating the Higgs boson or searching for new physics beyond current models, these studies push the boundaries of human knowledge about matter and energy.

At Gist.Science, we process every new preprint in this category as soon as it appears on arXiv. We strip away the dense jargon to offer both accessible plain-language explanations and detailed technical summaries, ensuring that groundbreaking research is understandable to everyone from students to seasoned experts. Below are the latest papers in this dynamic field, ready for you to explore with clarity and depth.

⚛️ high-energy theory

Wave packet description of Majorana neutrino oscillations in a magnetic field

This paper analytically solves the modified Dirac equation for Majorana neutrinos with transition magnetic moments in a magnetic field using a wave packet formalism to derive oscillation probabilities and demonstrate that decoherence effects, which depend on the relative strengths of vacuum and magnetic frequencies, can occur during propagation in supernova magnetic fields.

Artem Popov, Alexander Studenikin, Alexander Tcvirov2026-02-04
⚛️ nuclear experiments

Dark Matter-Induced Nuclear De-Excitation at SBND with Ab Initio Nuclear Theory

This paper demonstrates that the Short-Baseline Near Detector (SBND) can probe previously unexplored light dark matter parameter spaces by detecting MeV-scale photon "blips" from nuclear de-excitation, utilizing state-of-the-art ab initio nuclear theory to predict signals from argon excited states up to 18 MeV.

Bhaskar Dutta, Debopam Goswami, Baishan Hu, Wei-Chih Huang, Vishvas Pandey2026-02-04
⚛️ phenomenology

Transport Coefficients from pQCD to the Hadron Resonance Gas at finite BSQ densities

This paper calculates the shear viscosity of quantum chromodynamics across finite baryon, strangeness, and charge densities by combining perturbative QCD results at high densities with an excluded-volume hadron resonance gas model at low densities, while also presenting next-to-leading order weak-coupling results and analyzing the convergence of the perturbative series.

Isabella Danhoni2026-02-04
⚛️ high-energy experiments

Studying Energy-Energy Correlators in pp Collisions at the LHC with a Jet-Free Event-Topology Method

This paper introduces a robust, jet-free method for measuring energy-energy correlators in LHC proton-proton collisions using event topology and a leading charged hadron reference, which successfully extends measurements to low transverse momentum regimes and reveals distinct QCD dynamics, including the dead-cone effect in heavy flavor events.

Yazhen Lin, Liang Zheng, Zhongbao Yin2026-02-04
⚛️ phenomenology

Asymmetric dark matter from leptogenesis in type-III seesaw framework with modular S4S_4 symmetry

This paper proposes a unified framework based on modular S4S_4 symmetry and a type-III seesaw mechanism, where a single complex modulus τ\tau simultaneously explains neutrino masses, generates the baryon asymmetry via resonant leptogenesis, and produces asymmetric dark matter with a predicted mass of 0.1–2 GeV, all while remaining consistent with current neutrino oscillation data and future experimental constraints.

Abhishek, V. Suryanarayana Mummidi2026-02-04
⚛️ nuclear experiments

Jet-associated Balance Functions of Charged and Identified Hadrons in pp Collisions at s=13.6\sqrt{s}=13.6 TeV using PYTHIA8

This study utilizes PYTHIA8 to analyze charge balance functions of identified hadrons in high-multiplicity jets at s=13.6\sqrt{s}=13.6 TeV, revealing a narrowing balancing width and species-dependent dynamics that suggest multiparton interactions and color reconnection can generate collective-like features within small systems.

Subash Chandra Behera, Arvind Khuntia2026-02-04
⚛️ high-energy experiments

Probing Direct $CP$ Violation in Λb0Pc+hΛ_b^0 \to P_c^+ h^- (h=π,K)(h=π,K) with Final-State Rescattering

Inspired by recent LHCb measurements, this paper utilizes a final-state rescattering framework to predict that the decays Λb0Pc+π\Lambda_b^0 \to P_c^+ \pi^- exhibit branching fractions around 10610^{-6} with direct CP asymmetries near 1%, whereas the Λb0Pc+K\Lambda_b^0 \to P_c^+ K^- channel shows negligible CP violation and branching ratios highly sensitive to the spin assignments of the PcP_c states.

Zhu-Ding Duan, Tian-Liang Feng, Rui-Hui Li, Ming-Zhu Liu, Jian-Peng Wang, Fu-Sheng Yu2026-02-04
⚛️ high-energy experiments

Exploring Higgs EFT in ttˉhht\bar{t}hh at High Luminosity LHC

This paper presents a comprehensive study of the non-resonant ttˉhht\bar{t}hh production process at the High-Luminosity LHC within the Higgs Effective Field Theory framework, utilizing both cut-based and multivariate analysis techniques to establish the first sensitivity projections for key HEFT couplings and demonstrate the channel's unique potential to probe extended top-Higgs interactions beyond the Standard Model.

Ricardo D'Elia Matheus, Oscar J. P. Eboli, Rafiqul Rahaman, Aurore Savoy Navarro2026-02-04