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 resolves the apparent conflict between Wigner's theorem and non-invertible symmetries by demonstrating that unitary fusion category symmetries preserve probabilities not through unitary operators on a fixed Hilbert space, but by acting as trace-preserving quantum channels via isometries between distinct Hilbert spaces constructed from twisted sectors.
This paper investigates thermal Bhabha scattering within non-Hermitian QED by utilizing Thermofield Dynamics to derive the thermal differential cross section and establish constraints on the axial coupling constant under unbroken PT-symmetry.
This paper reexamines the viability of MeV-scale QCD axions by deriving new constraints from kaon decay measurements, particularly the KTeV data, and concludes that the previously suggested parameter window is effectively excluded even after accounting for theoretical uncertainties.
This paper demonstrates that symbolic regression applied to numerical on-shell data can autonomously rediscover fundamental analytic structures in scattering amplitudes, including KLT, Kleiss-Kuijf, and BCJ relations, thereby establishing a data-driven strategy for uncovering hidden theoretical connections like the gravity-gauge duality without relying on prior group-theoretic knowledge.
This paper investigates how the thermal environment of the early Universe modifies the evaporation history of primordial black holes, thereby significantly altering the timing and spectral properties of the stochastic gravitational wave background they produce compared to standard vacuum evaporation models.
This study demonstrates that deviations from the standard primordial power spectrum can significantly enhance or suppress the detectability of non-trivial cosmic topologies in CMB temperature data, highlighting the critical need to account for primordial spectrum uncertainties in topology searches.
This paper computes charm and strange meson fragmentation functions by deriving and solving a set of twenty-five coupled jet equations based on Poincaré covariant Bethe-Salpeter wave functions, thereby providing a consistent description of quark hadronization across both light and heavy sectors.
This paper proposes a "Tri-hypercharge" extension of the Standard Model where separate gauged weak hypercharges for each fermion family naturally explain flavor hierarchies, CKM mixing, and neutrino masses via a low-scale seesaw mechanism, while predicting TeV-scale bosons with observable implications for collider physics and flavor-violating processes.
This paper proposes and analyzes two minimal, ultraviolet-complete tri-hypercharge models that explain Standard Model fermion masses and mixings through three correlated physical scales, predicting that the lightest boson in these theories is discoverable via dilepton searches at LHC Run 3.
This paper establishes a covariant framework for semi-classical spin hydrodynamics in flat and curved spacetimes, demonstrating that spin and fluid modes decouple in the linear regime with damping governed solely by spin relaxation coefficients, while also highlighting the limitations of the Gibbs stability criterion due to equilibrium anisotropy and confirming similar relaxation dynamics in a conformal Bjorken flow background.