5582 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 prospect study demonstrating that a future Circular Electron-Positron Collider (CEPC) can achieve a top-quark mass measurement precision of a few MeV—nearly two orders of magnitude better than HL-LHC projections—by scanning the threshold, though this potential is currently limited by theoretical uncertainties in cross-section calculations.
This paper presents the first fully analytical single-field inflation model featuring a smooth transition from slow-roll to ultra-slow-roll phases, achieved by introducing a time-dependent effective mass term that maintains a continuously varying second slow-roll parameter while enabling precise tracking of the curvature power spectrum's parameter dependence.
This paper proposes an effective field theory framework incorporating non-invertible symmetry and SU(2) quintet fermions with a quartet scalar, where the dynamical generation of a loop-induced vacuum expectation value at a naturally determined cut-off scale of – GeV yields neutrino masses via order Yukawa couplings, offering a more natural explanation for the neutrino mass hierarchy than standard seesaw models.
This paper investigates the phenomenology of a neutrino scenario incorporating one eV-scale and one sub-eV sterile neutrino, demonstrating how this framework alters constraints on absolute mass observables and assessing the complementary potential of upcoming experiments like KATRIN, Project 8, and LEGEND-1000 to probe physics beyond the standard three-flavor paradigm.
This paper evaluates gluon occupancies in the saturation region, demonstrating that while Sudakov corrections limit maximum occupancy to , coherent and inelastic gluon TMDs remain identical and the saturated gluons exhibit minimal self-interaction.
This paper formulates a relativistic hydrodynamic theory for fluids with spin and intrinsic dilation charges, deriving constitutive relations that reveal gapped dilation excitations and scale-anomaly-induced transport effects, which reduce to microstretch fluid dynamics in the nonrelativistic limit and apply to rapidly expanding or contracting nearly conformal systems.
This paper investigates the late-time asymptotic behavior of superfluid Bjorken flow using Mueller-Israel-Stewart theory coupled to a complex scalar field, revealing that dissipative evolution leads to novel transseries solutions containing factors that encode initial data dilution and exhibit either damped fall-off or oscillations depending on the condensate relaxation rate, with potential implications for heavy-ion collision experiments.
This paper proposes a flipped standard model extended by a gauge group that naturally generates light neutrino masses via a radiative inverse seesaw mechanism and stabilizes a keV-scale fermionic dark matter candidate, whose overproduction is resolved through late-time entropy generation to satisfy cosmological constraints.
This paper investigates a quasi two-zero neutrino texture within a Type-II seesaw framework governed by modular symmetry at three fixed points, demonstrating that the model can satisfy cosmological bounds on the sum of neutrino masses from CMB and CMB+BAO data while retaining predictive power in the neutrino sector.
This paper proposes "topological leptogenesis," a novel mechanism that explains the universe's lepton asymmetry by replacing sterile neutrinos with a gapped topological order sector that cancels the Standard Model's anomaly, allowing topological quantum matter excitations to decay into Standard Model particles via an intermediate gravitational leptogenesis step.