5342 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 proposes a minimal classically scale-invariant extension of the Standard Model where a real scalar singlet dark matter particle acquires its mass through radiative electroweak symmetry breaking and is produced via the freeze-in mechanism, predicting a mass of approximately 2 MeV that evades current direct-detection constraints.
Using the Bethe-Salpeter formalism with one-boson-exchange interactions, this study predicts the existence of -wave bound states in both isoscalar hidden-heavy and specific doubly heavy , , , and systems, noting that the bottomonium counterparts are more favorably bound than their charmed counterparts due to larger reduced masses.
This paper proposes that the is a three-gluon glueball by constructing a six-quark current via rigorous current-field duality, deriving model-independent decay width ratios for its transition to three pseudoscalar mesons that align with BESIII experimental data.
This paper investigates the photoproduction of the fully-charmed tetraquark state off nuclei near the kinematic threshold using a collision model, demonstrating that specific observables like excitation functions and transparency ratios are sensitive to its internal structure (compact tetraquark, molecular, or mixed) and can thus help determine its nature in future experiments at electron-ion colliders.
This paper presents the first complete analysis of prompt double hadroproduction within the nonrelativistic-QCD framework, deriving a new set of long-distance matrix elements that successfully describe LHC data on pairs, single yields and polarization, and production, thereby providing a robust test of heavy-quark spin symmetry.
This paper presents a general-relativistic framework for two-component quantum dark fermion stars, demonstrating how their unique equilibrium structures and tidal deformability signatures can be distinguished from neutron stars and black holes to constrain dark-sector microphysics using multi-messenger gravitational-wave and astrometric observations.
The paper proposes that the requirement of well-defined QCD-induced mass mixing and stochastic decay constant mixing in string compactifications naturally organizes the spectrum of light axion-like particles into a "hierarchical axiverse" characterized by two distinct populations separated by an empty mass window, a pattern that is robust against ultraviolet details and consistent with Swampland constraints.
This paper presents a numerical computation of two-loop QCD scattering amplitudes for production at the LHC in the leading-colour approximation, utilizing a hybrid framework that combines numerical evaluation with analytic control to retain exact mass dependence and provide validated hard functions for next-to-next-to-leading-order cross-section calculations.
This paper derives the leading logarithmic soft-photon theorem in spacetime dimensions greater than four and its classical radiative counterpart, demonstrating how one-loop quantum corrections and long-range acceleration effects generate universal early- and late-time tails in electromagnetic waveforms that distinguish between intrinsically quantum and classically radiative contributions.
This paper analytically demonstrates that in anisotropic Gubser flow, the experimentally observed sign of longitudinal spin polarization arises from the interplay between thermal vorticity and thermal shear, with the specific outcome heavily dependent on the choice of reference unit vector formulation and the dominance of acceleration effects leading to cancellations.