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.

⚛️ nuclear theory

Effects of Geometric configuration in relativistic isobaric collisions at sNN=200\sqrt{s_{NN}}=200 GeV

This study utilizes the HYDJET++ model to investigate how nuclear deformation parameters (β2\beta_2, β3\beta_3) and surface diffuseness (aa) influence charged hadron multiplicity and elliptic flow in symmetric isobaric 96Ru+96Ru{}^{96}\mathrm{Ru}+{}^{96}\mathrm{Ru} and 96Zr+96Zr{}^{96}\mathrm{Zr}+{}^{96}\mathrm{Zr} collisions at sNN=200\sqrt{s_{NN}}=200 GeV, revealing distinct dependencies on collision geometry (tip-tip vs. body-body) that are compared with STAR experimental data.

Akash Das, Satya Ranjan Nayak, B. K. Singh2026-05-29
⚛️ phenomenology

Effective Field Theory Description of Light Dilaton

This paper constructs a systematic, scale-invariant effective field theory framework for light dilatons that connects ultraviolet conformal sectors to infrared phenomenology, enabling comprehensive constraints on MeV-scale particles from collider and astrophysical data while projecting sensitivities for ultralight dark matter detection via atomic clocks and interferometers.

Qing-Hong Cao, Jian-Nan Ding, Bing-Hui Ge, Hao Sun, Jiang-Hao Yu2026-05-29
⚛️ phenomenology

Relative transverse activity as a probe of collectivity-like long-range correlations in pp collisions at s=13\sqrt{s}=13 TeV

Using PYTHIA 8 simulations of 13 TeV proton-proton collisions, this study demonstrates that enhanced underlying-event activity, driven by multiple partonic interactions and color reconnection, can generate collectivity-like long-range correlations in the highest relative transverse activity events without requiring hydrodynamic evolution, thereby establishing RTR_{\mathrm{T}} as a crucial differential classifier for interpreting small-system signatures at the LHC.

Subhadeep Roy, Sadhana Dash2026-05-29
⚛️ high-energy experiments

Neural Scaling Laws for Jet Generation

This paper investigates neural scaling laws for particle jet generation, confirming logarithmic scaling with model size and validating next-token prediction loss as a proxy for physical accuracy, while observing weaker scaling trends for dataset size and compute due to rapid saturation in autoregressive learning.

Oz Amram, Darius A. Faroughy, Tjarko Gerdes, Anna Hallin, Gregor Kasieczka, Michael Krämer, Humberto Reyes-Gonzalez, Dav (…)2026-05-29