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 reviews recent advancements, computational tools, and phenomenological applications of the Standard Model Effective Field Theory (SMEFT) as a framework for studying indirect evidence of heavy new physics beyond the Standard Model.
This review examines how extreme magnetic fields in magnetars influence the microscopic properties of dense fermionic matter and the resulting macroscopic structure and composition of compact stars.
This paper demonstrates that directional neutrino detection can observe neutrino spin oscillations by identifying a unique azimuthal asymmetry in the angular distribution of recoil momenta during low-energy elastic scattering processes.
This paper presents a Regge exchange model analysis of high-energy polarized photoproduction data from GlueX and SLAC, using spin density matrix elements to constrain helicity amplitudes and providing the first extractions of several meson-nucleon-delta coupling constants.
This paper demonstrates that the apparent instability of cosmological perturbations in quadratic gravity is a gauge-dependent artifact rather than a physical pathology by employing a gauge-independent approach in the Einstein frame.
This paper presents a complete one-loop dictionary connecting the Standard Model Effective Field Theory to arbitrary ultraviolet completions involving heavy fermions and scalars, implemented in the updated SOLD package to facilitate systematic phenomenological studies such as explaining the measurement tension.
This paper demonstrates that naturalness scenarios naturally suppress neutrino masses through a mechanism involving numerous mixing partners, leading to a specific tower of additional neutrino mass eigenstates that offers unique, testable signatures in terrestrial oscillation, mass, and neutrinoless double beta decay experiments, thereby extending the model's phenomenological reach beyond cosmology.
This paper introduces a new thermodynamic state function to compute high-order temperature fluctuations in hot QCD matter, revealing that these fluctuations are significantly suppressed and exhibit negative skewness during the transition from a hadron resonance gas to a quark-gluon plasma due to the increased heat capacity of the latter.
This paper compares nonfactorizable charm-quark loops in exclusive FCNC decays with three-particle contributions to semileptonic -decay amplitudes, highlighting that while both are described by a convolution involving the -meson's three-particle wave function in the heavy-quark limit, they differ fundamentally in their light-cone configurations (double collinear versus single collinear).
This paper generalizes spurion analysis to non-invertible fusion algebras, specifically near-group types like Fibonacci and Ising, by introducing a systematic labeling scheme for coupling constants that explains the radiative violation of tree-level selection rules and distinguishes these effects from those arising in lifted group symmetries.