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

Probing Boosted Light Scalars in the Type-I 2HDM

This paper proposes a novel search strategy at the LHC for light scalars in the Type-I 2HDM by targeting electroweak production of boosted light scalars in association with heavy pseudoscalars or charged Higgs bosons, demonstrating that reconstructing boosted double-bb fat-jets alongside a SM gauge boson can effectively probe hierarchical scalar spectra and exclude heavy scalar masses up to ∼540\sim 540 GeV at the HL-LHC.

Partha Konar, Tanmoy Mondal, Chandrima Sen2026-05-14
⚛️ general relativity

When Weak Fields Arent Weak: Post-Newtonian effective theory and the Dark Matter Puzzle

This paper challenges the conventional reliability of Post-Newtonian effective theory in weak-field regimes by demonstrating that non-integrability and angular-momentum exchange in many-body systems can cause breakdowns in power counting, offering a new systematic framework for mass inference that may resolve the dark matter puzzle without invoking new particles.

Marco Galoppo, Giorgio Torrieri2026-05-14
⚛️ lattice

Mass of the dark antibaryon using Bd→ΛψDSB_d\rightarrow \Lambda \psi_{DS} channel in light cone QCD

This paper utilizes Light Cone Sum Rules with twist-6 contributions to calculate the branching fraction of the Bd→ΛψDSB_d\rightarrow\Lambda \psi_{DS} decay, thereby determining the allowed mass range for the dark antibaryon ψDS\psi_{DS} consistent with BB-mesogenesis constraints from BaBar and Belle experimental data.

M. A. Abri, N. Hajirasouliha, K. Azizi2026-05-14
⚛️ phenomenology

Semi-Analytic Modeling of Dark Matter Subhalo Encounters with Thin Stellar Streams: Statistical Predictions for GD-1-like Streams in CDM

This paper uses semi-analytic modeling to predict that dark matter subhalos with masses between 2×1062\times 10^6 and 108M⊙10^8 M_{\odot} are most likely to create observable gaps in GD-1-like stellar streams, typically occurring at a rate of three per Milky Way-like host with characteristic widths of 5–27 degrees and underdensities of 10–30%.

Duncan K. Adams, Aditya Parikh, Oren Slone, Rouven Essig, Manoj Kaplinghat, Adrian M. Price-Whelan2026-05-13
⚛️ nuclear theory

Constraining hot and cold nuclear matter properties from heavy-ion collisions and deep-inelastic scattering

This paper presents a global analysis combining deep-inelastic scattering and heavy-ion collision data within a saturation-based QCD framework to constrain the early-time shear viscosity to entropy density ratio (η/s\eta/s) of the quark-gluon plasma.

Anton Andronic, Nicolas Borghini, Xiaojian Du, Christian Klein-Bösing, Renata Krupczak, Hendrik Roch, Sören Schlichting2026-05-13
⚛️ phenomenology

Dark Matter and the Early Formation of Supermassive Black Holes

This paper investigates how dark matter capture, alongside mergers and gas accretion, can facilitate the rapid growth of supermassive black holes by z≥10z \ge 10, finding that while standard cold dark matter contributes insignificantly, scenarios involving dark matter clustering or ultralight dark matter can enable stellar-mass seeds to reach masses exceeding 107M⊙10^7 M_{\odot}.

Andrew Imai, Grant J. Mathews, Guobao Tang, Brian Zhang2026-05-13
⚛️ nuclear experiments

Glauber quark and gluon contributions to quark energy loss at next-to-leading order and next-to-leading twist

This paper computes all possible medium-induced single-scattering emission kernels for an energetic virtual quark traversing a nuclear environment at next-to-leading order and next-to-leading twist, incorporating heavy-quark mass effects, Glauber quark and gluon interactions, and coherence effects to derive four distinct collisional scattering kernels with full phase factors and gradient expansions.

Amit Kumar, Gojko Vujanovic2026-05-13