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

Current status of the light neutralino thermal dark matter in the phenomenological MSSM

This paper reaffirms the robustness of strong experimental constraints on light neutralino thermal dark matter within the phenomenological MSSM, explores the impact of light staus and non-standard cosmology, and proposes machine learning-optimized benchmarks for future LHC Run-3 searches.

Rahool Kumar Barman, Genevieve Bélanger, Biplob Bhattacherjee, Rohini Godbole, Rhitaja Sengupta2026-03-06
⚛️ phenomenology

Getting More Out of Black Hole Superradiance: a Statistically Rigorous Approach to Ultralight Boson Constraints from Black Hole Spin Measurements

This paper advocates for a Bayesian statistical framework based on timescale analysis to derive the most rigorous constraints on ultralight boson masses and self-interactions from black hole spin measurements, demonstrating its application to both stellar-mass and supermassive black holes while highlighting the need for standardized data sharing in the field.

Sebastian Hoof, David J. E. Marsh, Júlia Sisk-Reynés, James H. Matthews, Christopher Reynolds2026-03-06
⚛️ phenomenology

Boundary topological orders of (4+1)d fermionic Z2NF\mathbb{Z}_{2N}^{\mathrm{F}} SPT states

This paper investigates (3+1)d topological orders with anomalous Z2NF\mathbb{Z}_{2N}^{\mathrm{F}} symmetry by microscopically constructing symmetry-preserving gapped boundary states for related (4+1)d SPT phases, demonstrating that such states admit a topological Z4\mathbb{Z}_4 gauge theory description when N=νN=\nu, a non-TQFT solution when ν=N/2\nu=N/2, and no symmetric gapped state otherwise, thereby confirming existing no-go theorems.

Meng Cheng, Juven Wang, Xinping Yang2026-03-06
⚛️ phenomenology

Long-lived Light Mediators in a Higgs Portal Model at the FCC-ee

This study evaluates the potential of the IDEA detector at the FCC-ee, alongside proposed dedicated LLP detectors like DELIGHT B, to detect long-lived particles arising from Higgs and B-meson decays within a Higgs portal model, finding that cylindrical configurations and DELIGHT B offer enhanced sensitivity against Standard Model backgrounds.

Biplob Bhattacherjee, Camellia Bose, Herbi K. Dreiner, Nivedita Ghosh, Shigeki Matsumoto, Rhitaja Sengupta2026-03-06