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

Critical net-proton number fluctuations with hydrodynamics

This study computes net-proton number fluctuations across nine collision energies using a hydrodynamic model incorporating critical fluctuations from the functional renormalization group, revealing that while low-order cumulant ratios show minimal deviation from non-critical baselines, higher-order ratios like C4/C2C_4/C_2 exhibit a distinct non-monotonic energy dependence driven by the critical end point.

Rui-zhe Zhao, Shi Yin, Shanjin Wu, Lipei Du, Xiaofeng Luo, Wei-jie Fu2026-07-30
⚛️ high-energy theory

Non-Minimally Coupled Chain Inflation at High Scales

This paper demonstrates that introducing non-minimal coupling to gravity in chain inflation models resolves the tension preventing high-energy scale inflation, thereby enabling viable scenarios at V∗1/4∼1011 GeVV_*^{1/4} \sim 10^{11}\,\rm{GeV} that predict distinct, testable signatures in the stochastic gravitational wave background and spectral index running.

Miguel Barroso Varela, Orfeu Bertolami, Katherine Freese, Evangelos Sfakianakis2026-07-30
🔬 atomic physics

Enhancement of Weak Interactions in Phase Transitions in Condensed Matter and Early Universe

This paper proposes that parity-violating weak interactions, which typically induce negligible energy differences between chiral systems, can be dramatically amplified during phase transitions by a factor proportional to the critical nucleus size (NcN_c), offering a mechanism to measure NcN_c experimentally and potentially explaining the cosmological matter-antimatter asymmetry.

V. V. Flambaum2026-07-29
⚛️ high-energy experiments

Deep-learning jet flavor tagging for precision hadronic Higgs measurements at future e+e−e^+e^- Higgs factories

This paper demonstrates that employing state-of-the-art deep-learning jet flavor taggers combined with XGBoost classifiers at a future e+e−e^+e^- Higgs factory operating at 240 GeV with 20 ab−1^{-1} luminosity significantly improves the precision of measuring Higgs decays to ccˉc\bar{c} and $gg$ while enabling the first quantitative sensitivity estimate for the challenging H→ssˉH\to s\bar{s} channel.

Xinzhu Wang, Yifan Zhu, Chunxiang Zhu, Jianfeng Jiang, Manqi Ruan, Kun Wang, Haijun Yang, Yongfeng Zhu2026-07-29
⚛️ high-energy experiments

Gedanken Experiments of Entanglement in Particle Physics: Interactions, Operators and Bell Inequalities in Flavor Space

This paper proposes using Bell-type inequalities as operator-level diagnostics in collider experiments to demonstrate that fundamental Standard Model interactions, when treated as measurement settings for entangled particle pairs, generate non-contextual correlations that violate local realism through their inherent algebraic structure.

Corbin Pacheco (Wayne State University), Nausheen R. Shah (Wayne State University)2026-07-29
⚛️ high-energy experiments

Information-theoretic astrophysical uncertainties in the effective theory of dark matter direct detection

This paper quantifies how astrophysical uncertainties in the dark matter velocity distribution impact direct detection rates across all non-relativistic effective field theory operators by employing Kullback-Leibler divergence to reveal that uncertainties can vary from less than one order of magnitude to as much as three orders of magnitude, depending on the specific operator's dependence on velocity-weighted moments.

Gonzalo Herrera2026-07-29
⚛️ nuclear theory

QCD matter at a finite magnetic field and nonzero chemical potential

This paper constructs a hybrid equation of state to investigate QCD matter under finite magnetic fields and nonzero chemical potential, revealing that these parameters significantly alter thermodynamic observables and the speed of sound, with the model successfully reproducing lattice QCD data at lower field strengths while underestimating magnitudes at higher fields.

Zhi-Ying Qin, Bo Feng, Ya-Hui Hou, Hong-Yue Song, Wen-Chao Zhang, Hua Zheng, Shi-Jun Mao2026-07-29