3231 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 demonstrates that perturbative inflaton decay inevitably generates an irreducible stochastic gravitational-wave background with a characteristic linear frequency spectrum () fixed by Weinberg's soft-graviton theorem, establishing a fundamental "graviton floor" that reaches amplitudes of at GHz frequencies and serves as a benchmark to distinguish standard single-field slow-roll inflation from alternative scenarios.
This paper demonstrates that adversarial training enhances the robustness of deep learning-based jet flavor tagging algorithms against input distortions, which serve as a proxy for systematic uncertainties, by leveraging geometric insights from the loss surface to maintain high performance while mitigating model vulnerabilities.
Using a decade of Super-Kamiokande data, this study establishes that the Sun's capture of leptophilic dark matter scattering off electrons produces a neutrino flux that yields constraints on the dark-matter/electron scattering cross-section exceeding terrestrial direct detection limits by over an order of magnitude for masses below 100 GeV.
This paper utilizes the EFT of inflation in the decoupling limit to derive a non-perturbative Hamiltonian for single-field ultra slow-roll (USR) inflation, revealing that instantaneous transitions to the slow-roll phase cause higher-order loop corrections on long CMB scales to grow rapidly, potentially pushing the model out of perturbative control.
This paper derives all-order interaction Hamiltonians and non-linear field relations for single-field inflation with a transient ultra-slow-roll phase, demonstrating that loop corrections to long-wavelength perturbations grow rapidly as , thereby causing a breakdown of perturbative control at the fourth loop order in standard models used for primordial black hole formation.
This paper presents analytic expressions for one-loop QCD helicity amplitudes for and production at the LHC through , expressed in terms of pentagon functions with rational coefficients in momentum-twistor variables, to facilitate NNLO QCD computations.
This paper proposes a novel scheme for detecting wave-like dark matter, specifically dark photons, by utilizing large ensembles of Rydberg atoms trapped in optical tweezer arrays to observe DM-induced excitations between energy levels, with the ability to scan different dark matter masses via external magnetic field tuning.
This paper employs weakly coupled QCD kinetic theory to simulate minijet thermalization in a Quark-Gluon Plasma, demonstrating that including recoiling medium particles is essential for reconciling standard jet transport coefficients with kinetic evolution and establishing a phenomenological estimate for minijet quenching times.
This paper presents the first leading-colour computation of the double virtual contributions to top-quark pair production with a jet at next-to-next-to-leading order in QCD, providing analytically extracted finite remainders via a differential equation-based special function basis and a publicly available C++ library for phenomenological applications.
This paper presents two-loop all-plus helicity amplitudes for a self-dual Higgs boson interacting with up to four positive-helicity gluons in the heavy top-quark limit, utilizing four-dimensional unitarity cuts and finite-field tensor reduction to derive compact expressions involving polylogarithms up to weight two and rational spinor-helicity functions.