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.

⚛️ phenomenology

Addressing the SS-wave scalar f0(1500)f_0(1500)-resonance in quasi-four-body FCNC rare Bs→f0(1500)(→π+π−)ℓ+ℓ−/ννˉB_s \to f_0(1500) (\to \pi^+ \pi^- ) \ell^+ \ell^- / \nu \bar \nu decays

This paper investigates the f0(150)f_0(150) resonance within the quasi-four-body FCNC rare decays Bs→f0(1500)(→π+π−)ℓ+ℓ−/ννˉB_s \to f_0(1500)(\to \pi^+ \pi^-) \ell^+ \ell^- / \nu \bar \nu by constructing its twist-2 light-cone distribution amplitudes, calculating the associated transition form factors via QCD light-cone sum rules, and predicting the resulting branching fractions and differential decay widths to provide theoretical guidance for future experimental studies.

Xue Zheng, Hai-Bing Fu, Dan-Dan Hu, Jing-Kai Yang, Jian-Qi Chen, Wan-Bing Luo2026-09-17
⚛️ high-energy experiments

Comprehensive reconstruction of collider events with hypergraph representation learning and graph-conditioned diffusion

This paper introduces VyPER, a novel geometric learning framework that combines hypergraph representation learning with graph-conditioned diffusion models to simultaneously optimize particle assignment and neutrino kinematics prediction, demonstrating superior event reconstruction performance across diverse Standard Model processes compared to existing techniques.

Lining Mao, Yvonne Peters, Ethan Simpson, Zihan Zhang2026-09-17
⚛️ high-energy experiments

Baselines for Abelian Charge Fluctuations in Nuclear Collisions:Theory and Comparison with Experimental Data

This paper establishes a theoretical framework for analyzing Abelian charge fluctuations in nuclear collisions by deriving analytical expressions for cumulants in the canonical ensemble and incorporating local multi-particle interactions, which successfully reproduce STAR and HADES experimental data by revealing the decisive role of repulsive two-proton interactions at high energies and attractive three-particle interactions at lower energies.

Bengt Friman, Krzysztof Redlich, Anar Rustamov2026-09-16
⚛️ phenomenology

CP violation angles from H→ττ\toττ decays at FCC-ee

This paper projects that the FCC-ee collider will achieve a precision of ±2.5∘\pm 2.5^\circ in measuring the Higgs CP-violation angle from H→ττH\to\tau\tau decays at s=240\sqrt{s}=240 GeV, primarily driven by one-prong hadronic τ\tau decays, and interprets these results within the Effective Field Theory framework to establish competitive limits on CP-odd operators.

Sofia Giappichini, Markus Klute, Matteo Presilla2026-09-16
⚛️ phenomenology

On gravitational baryogenesis in inflationary f(R)f(R) Cosmologies

This study investigates gravitational baryogenesis in Starobinsky and power-law f(R)f(R) inflationary models within the Einstein frame, finding that while calculated baryon asymmetries are numerically close to observations, the mechanism is likely unviable under current assumptions due to conflicts with CMB constraints and the need for significant entropy dilution and thermalization effects that remain unaddressed.

Ian B. Whittingham2026-09-16