5365 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.
Motivated by the recent observation of toponium (), this paper phenomenologically investigates the decay channel at the High-Luminosity LHC, predicting that tens of clean dilepton events could be observed and proposing this -jet-free signature as a sensitive probe for future studies.
This paper presents a phenomenological study of a flavor-dependent extension of the Standard Model, demonstrating that the predicted properties of the SM-like Higgs boson, including its diphoton decay parameter , remain consistent with ATLAS and CMS constraints while satisfying bounds from flavor, collider, and dark matter experiments.
This paper proposes a theoretical framework featuring generation-separated hypercharges and dark charges that simultaneously explains the origin of fermion flavor hierarchies, generates neutrino masses via seesaw or scotoseesaw mechanisms, and provides a stable dark matter candidate through a residual symmetry.
This paper evaluates the Light Dark Matter eXperiment's (LDMX) projected 5 discovery potential and model selection capabilities for light dark matter mediated by a dark photon, demonstrating that a two-dimensional likelihood-based analysis of recoil electron distributions can effectively distinguish between competing dark sector hypotheses and accurately infer model parameters.
This paper calculates the decay constants of the two-pole structure of the scalar charmed meson using an effective Lagrangian approach, finding values significantly smaller than conventional quark-model predictions to propose decay constants as a discriminative probe for its internal structure, and subsequently predicts branching fractions for related and decays to experimentally validate this two-pole interpretation.
This paper presents the first constraints on invisible solar-neutrino decay using coherent elastic neutrino-nucleus scattering data from current dark matter experiments (XENONnT, PandaX-4T, and LUX-ZEPLIN) and projects that future xenon-based detectors could significantly improve these bounds and extend sensitivity to low-energy neutrinos via electronic-recoil channels.
This paper computes next-to-leading order FsQED corrections to the radiative pion pair production process , compares these results with alternative theoretical approaches and previous models, and implements the findings along with additional structure-dependent mechanisms into the BabaYaga@NLO Monte Carlo generator to improve the precision of radiative return measurements at flavor factories.
Using the covariant Nambu--Jona-Lasinio model with Schwinger proper-time regularization, this study calculates the electromagnetic form factors, charge radii, and magnetic moments of charged and neutral strange vector mesons, yielding results consistent with other theoretical calculations and lattice QCD simulations.
This study calculates the nuclear matrix elements and half-lives for the two-neutrino double-electron capture of Xe and double-beta decay of Xe using four different many-body methods, finding consistent predictions that suggest Xe's half-life may be within reach of next-generation experiments while Xe's is approximately an order of magnitude longer.
This paper demonstrates that by marginalizing over evolving dark energy parameters or utilizing a late-Universe-free approach combining primary CMB and lensing data, cosmic neutrino mass bounds can be made robust against dark energy model uncertainties, yielding relaxed limits (e.g., eV) that remain competitive with next-generation laboratory experiments like Project 8.