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 precise lattice QCD calculations of the ratio in the iso-symmetric limit using a combined Wilson unitary and mixed-action approach, which are subsequently utilized to determine and test the unitarity of the first row of the CKM matrix after incorporating strong isospin-breaking and QED effects.
This paper introduces "twisted Feynman integrals" characterized by an additional linear exponential factor in the integrand, establishes their geometric framework as exponential periods, and generalizes standard computational tools to reveal that their Symanzik polynomials become graded and their function space geometry cannot be determined solely by leading singularities.
The paper introduces SAILIR, a self-supervised machine learning framework that utilizes a transformer-based classifier to perform Feynman loop integral reduction with bounded memory consumption, offering a scalable alternative to traditional Laporta-based methods that struggle with memory limitations as complexity increases.
This paper determines the normalization of the leading infrared renormalon for the chromomagnetic moment of a heavy quark and uses hyperasymptotic precision calculations to fit experimental hyperfine splitting data, yielding a value of GeV for the ground state.
This paper computes the stochastic gravitational wave background generated by parametric resonance of a spectator scalar field during reheating, deriving a master formula that predicts a detectable high-frequency signal () while validating the analytical framework against nonlinear lattice simulations to capture both superhorizon evolution and fragmentation effects.
This paper extends the semileptonic sum rule to include strange baryon and meson decays, quantifies the impact of SU(3) symmetry breaking to confirm it remains within experimental uncertainties, and proposes new predictive sum rules to rigorously test the consistency of processes.
This paper responds to a comment by Huang and Li by acknowledging an overlooked real-value condition in their previous work on reflection symmetry while clarifying that Inverted Ordering remains in tension with current experimental bounds on the sum of neutrino masses, despite being permitted by effective neutrino mass constraints.
This paper demonstrates that the injection of both dark and electromagnetic radiation between Big Bang nucleosynthesis and recombination is tightly constrained by the dilution of the baryon-to-entropy ratio, limiting the total allowed extra radiation to approximately 25% more than if it were purely dark radiation.
This study demonstrates that in high-energy oxygen-oxygen collisions at 5.36 TeV, the produced QCD matter only partially reaches local equilibrium, necessitating a core-corona framework rather than a purely hydrodynamic approach to accurately describe the dynamics, particularly the incomplete chemical equilibrium observed in strange baryon yields.
This paper demonstrates that non-standard early Universe expansion histories, specifically faster-than-radiation expansion and scalar-tensor gravity, can enable successful Type-III leptogenesis with triplet fermion masses in the TeV to few-hundred-TeV range, significantly lowering the energy scale compared to the standard radiation-dominated scenario.