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.

⚛️ high-energy experiments

Prospects for Measuring $CP$-Violation in Bs0ϕμ+μB_s^0 \rightarrow ϕμ^+μ^- via Time-Dependent Angular Analysis

This paper investigates the prospects for measuring $CP$-violation in Bs0ϕμ+μB_s^0 \rightarrow \phi\mu^+\mu^- decays at the LHC by introducing new time-dependent angular observables, demonstrating that future Run 3–5 datasets will enable their extraction with high precision and significantly enhance sensitivity to $CP$-violating short-distance effects and Wilson coefficients.

Sebastian Schmitt, Amr Elmarassy, Michele Atzeni, Eluned Smith2026-02-04
⚛️ high-energy experiments

Modelling bbˉHb\bar b H production for the LHC at 13.6 TeV

This paper presents state-of-the-art Standard Model predictions for bbˉHb\bar bH production at the LHC's 13.6 TeV energy, providing updated cross sections and matched simulations in both five-flavour and four-flavour schemes while exploring their implications for Beyond-the-Standard-Model scenarios and Higgs coupling sensitivities.

Christian Biello, Alessandro Gavardi, Rebecca von Kuk, Matthew A. Lim, Stefano Manzoni, Elena Mazzeo, Javier Mazzitelli (…)2026-02-04
⚛️ general relativity

Conservative Black Hole Scattering at Fifth Post-Minkowskian and Second Self-Force Order

Using worldline quantum field theory, this paper computes the conservative scattering angle and impulse for black holes at fifth post-Minkowskian order by performing a complex four-loop calculation that identifies and resolves a spurious velocity divergence through a novel conservative propagator prescription, thereby ensuring consistency with radiative memory and tail contributions while satisfying all known low-velocity limits.

Mathias Driesse, Gustav Uhre Jakobsen, Gustav Mogull, Christoph Nega, Jan Plefka, Benjamin Sauer, Johann Usovitsch2026-02-04
⚛️ phenomenology

Constraints on birefringence-free photon theory within standard-model extension

Using 14 GeV-band gamma-ray burst photons within the Standard-Model Extension framework, this study employs Bayesian analysis to establish the most stringent constraints to date on isotropic, birefringence-free Lorentz-violating coefficients for dimensions d=6,8,d=6, 8, and $10$, improving previous bounds by at least five orders of magnitude while indicating a preference for subluminal effects.

Zhi Xiao, Hanlin Song, Bo-Qiang Ma2026-02-04
⚛️ phenomenology

NeutrinoOsc3Flavor: CP Phase Dependence in Three-Flavor Neutrino Oscillations: A Numerical Study in Vacuum and Matter

This paper introduces NeutrinoOsc3Flavor, a lightweight, NumPy-based Python framework that provides a transparent and pedagogical numerical solution for three-flavor neutrino oscillations in vacuum and matter, featuring exact CP phase dependence, cross-platform compatibility, and an independent analytical validation of matter effects using the Cardano method.

Baktiar Wasir Farooq, Bipin Singh Koranga, Ansh Prasad, Imran Khan2026-02-04
⚛️ high-energy experiments

Hydrogenated carbon structures as directional sub-GeV dark matter detectors

The paper proposes using simple, inexpensive hydrogenated carbon structures as highly sensitive, directional detectors capable of identifying sub-GeV dark matter through the quasi-elastic ejection of protons, offering superior performance and background rejection compared to current experiments.

Tomás Arias, Antonino Bellinvia, Gianluca Cavoto, Angelo Esposito, Francesco Pandolfi, Guglielmo Papiri, Antonio D. Polo (…)2026-02-04
⚛️ phenomenology

Quantum Tomography of Fermion Pairs in e+ee^+e^- Collisions: Longitudinal Beam Polarization Effects

This paper demonstrates that longitudinal beam polarization at future e+ee^+e^- colliders serves as a powerful control knob for quantum resources in fermion pair production, significantly modulating non-stabilizerness ("magic") while preserving entanglement and Bell nonlocality in ss-channel processes, and offering a unique experimental platform to observe these quantum information properties with high statistical significance.

Yu-Chen Guo, Tao Han, Matthew Low, Youle Su2026-02-04
⚛️ phenomenology

Differentiating Dimension-6 and Dimension-8 Effects in ννSMEFT at the HL-LHC

This paper establishes a complete basis of dimension-eight operators in the ν\nuSMEFT using Hilbert series formalism and demonstrates that their distinct kinematic signatures, specifically in right-handed neutrino pair production at the HL-LHC, can be experimentally distinguished from dimension-six effects using Boosted Decision Tree analysis.

Manimala Mitra, Shakeel Ur Rahaman, Subham Saha, Michael Spannowsky2026-02-04