3277 papers
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.
This paper presents a comprehensive analysis of the impact of newly computed two-loop SMEFT Renormalisation Group Equations on future collider phenomenology, demonstrating through both bottom-up global fits and top-down model matching that these higher-order corrections induce non-negligible effects, particularly for specific operators and model couplings, thereby altering sensitivity predictions for the HL-LHC and FCC-ee.
The paper proposes DMRadio-Core, a novel experimental design utilizing a segmented solenoid and external LC resonators to significantly reduce the required magnetic energy while maintaining sensitivity, thereby enabling a near-term search for GUT-scale QCD axions in the 30–200 MHz range with a scalable path to lower frequencies.
This paper presents the first fully analytic calculation of the four-loop (NNNLO) anomalous dimensions for current-current operators in QCD, providing a crucial step toward a complete four-loop determination of indirect CP violation in the neutral kaon system () and offering results adaptable to various operator bases including the standard one used in physics.
This paper establishes new, tighter cosmological upper bounds on the fraction of dark matter composed of massive compact halo objects (MACHOs) with masses between and solar masses by analyzing distortions in the global 21-cm signal during the cosmic dark ages, a method that avoids astrophysical uncertainties associated with star formation.
This paper demonstrates that incorporating the finite conductivity of the plasma significantly suppresses the parametric resonance mechanism proposed for ultralight dark matter to generate astrophysical magnetic fields, rendering it insufficient to explain the magnetic fields observed in cosmic voids.
This paper presents a theorist's perspective on utilizing various non-leptonic and rare B meson decays as probes for CP violation at the Future Circular Collider (FCC) in the post-HL-LHC and Belle II era.
This paper demonstrates the feasibility of incorporating Fermi-Dirac statistics into boost-invariant perfect spin hydrodynamics simulations for spin-1/2 particles, revealing that while the resulting corrections are an order of magnitude smaller than spin feedback effects, the approach requires careful handling as numerical solutions can break down under extreme spin polarization.
This paper proposes entropy as a function of the logarithm of average multiplicity to resolve pseudorapidity ambiguities in high-energy proton-proton collisions, demonstrating that a generalized dipole model provides a significantly better description of experimental data than the standard 1D Mueller dipole model.
This paper demonstrates that the polynomial class of -attractor inflation models (P-models) is consistent with current Cosmic Microwave Background data from Planck and ACT, provided that reheating dynamics are accounted for to constrain the scalar spectral index and tensor-to-scalar ratio within narrow, model-dependent ranges.
This paper presents an improved, publicly available numerical method based on the Bogoliubov approach that overcomes existing instabilities to accurately calculate the full spectrum of primordial gravitational waves from inflation through reheating, revealing how inflaton anharmonicity imprints distinct features on high-frequency signals.