3153 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 pulsar timing array observations of scalar-induced gravitational waves impose stringent constraints on the abundance of primordial black holes, particularly for stellar-mass objects, though these limits are significantly relaxed by positive non-Gaussianities or alternative formation theories like the peaks formalism.
This paper investigates the phenomenology of the $SU(5)/SO(5)$ Composite Higgs Model, analyzing how fermion embeddings and scalar mixing influence the decay patterns of pseudo Nambu-Goldstone bosons and highlighting the potential of future muon colliders to detect heavy scalars through distinctive multi-boson final states.
This paper utilizes Non-relativistic QCD within the Generalized Parton Distribution framework to calculate large relativistic corrections for exclusive near-threshold vector quarkonium photoproduction, revealing a breakdown of the GPD moment expansion for and the presence of endpoint divergences away from the threshold regime.
This paper establishes stringent upper bounds on flavor-specific self-interactions of ultrahigh-energy muon neutrinos mediated by sub-GeV scalar bosons by analyzing how their energy injection into the early universe plasma induces -type and -type cosmic microwave background spectral distortions, demonstrating that future experiments like PIXIE could decisively probe neutrino physics beyond the Standard Model.
This paper establishes the strongest current constraints on millicharged particles with masses between 0.7 and 2 MeV by identifying overlooked -cascade sources in nuclear reactors and deriving new limits from electron recoil data, while also assessing sensitivity from solar production in low-threshold dark matter experiments.
This paper investigates the sensitivity of future colliders (ILC, CEPC, FCC-ee) to axion-photon-dark photon interactions via single-photon missing energy signatures, demonstrating that these facilities can probe couplings down to for GeV-scale dark photons, with ILC beam polarization significantly enhancing discovery potential and recoil mass measurements enabling dark photon mass determination.
This paper presents an updated extraction of unpolarized quark transverse momentum distributions in the pion by incorporating a more comprehensive treatment of theoretical uncertainties and, for the first time, investigating flavor-dependent differences using all available unpolarized pion-nucleus Drell-Yan data.
This paper investigates the semileptonic and nonleptonic weak decays of bottom baryons and using three-point QCD sum rules to calculate form factors, decay widths, and branching ratios, thereby providing theoretical predictions to test Standard Model validity and explore new physics in heavy baryonic systems.
This paper introduces a novel method for calculating terminal bubble velocities in first-order phase transitions by identifying wall velocities that create degenerate minima in a modified "pseudopotential," thereby determining net outward pressure without solving scalar field equations of motion or relying on simplified equations of state.
This paper proposes that the distant, disconnected TeV gamma-ray tails observed from the SS433 binary system originate from ultra-relativistic PeV neutron jets ejected during rare tidal eruptions, which subsequently decay and scatter to produce the observed high-energy radiation.