5342 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 the first electroexcitation amplitudes for nucleon resonances in the third resonance region, derived from electroproduction cross sections measured by the CLAS detector, which successfully extract electrocouplings for established states like and , provide new data for and at GeV, and reveal evidence for a new state.
This paper demonstrates that double forward-proton tagging in photon fusion processes enables a decay-analyzer-independent measurement of the CP phase of spin-zero resonances by utilizing the measured proton recoil to determine photon polarization and observing the resulting shift in the second harmonic of the signed proton-proton azimuthal angle.
This paper demonstrates that in nonminimally coupled quintessential inflation, constraints on the reheating temperature derived from the stochastic gravitational-wave background's contribution to directly limit the present-day dark-energy equation of state, a tension resolved by a double-exponential potential that yields a thawing quintessence regime with .
This paper demonstrates that a graph neural network applied to boson fusion di-Higgs production at the 3 TeV CLIC collider can achieve a signal significance of approximately 20, offering superior sensitivity to the Higgs self-coupling and electroweak symmetry breaking mechanisms compared to the High-Luminosity LHC.
This paper presents the first complete NNNLO QCD calculations for the top-quark decay width and related observables, revealing a significant 0.8% reduction in the decay width that exceeds previous uncertainty estimates while demonstrating that -helicity fractions remain stable at the per-mille level, thereby establishing the theoretical precision required for future collider experiments.
This chapter pedagogically explains how particle physics models, specifically those leveraging scale invariance and Goldstone's theorem, naturally generate inflationary scenarios with testable predictions for new physics.
This paper proposes a novel dark matter production mechanism where light, stable Planck-scale black holes form from the collapse of dark baryons in large- confining SU(N) gauge theories, subjecting the model's parameters to strict constraints on the number of colors and relic mass to account for the entirety of dark matter.
This paper introduces a graph-based algorithm for reconstructing displaced vertices from long-lived particle decays, implemented as a modular Delphes tool that demonstrates high efficiency and resolution in FCC-ee simulations to enable automated sensitivity projections for exotic Higgs branching fractions.
This paper presents a systematic construction of the complete set of independent six-derivative effective scalar-tensor theories, extending Weinberg's four-derivative framework to provide a robust foundation for studying quantum corrections, parity-violating interactions, and strong-curvature effects in gravity.
This paper demonstrates that while the Practical Dirac Majorana Confusion Theorem generally suppresses differences between Dirac and Majorana neutrinos, introducing a CP-violating, flavor-changing neutral current mediated by a Z' boson allows for observable distinctions in Coherent Elastic Neutrino-Nucleus Scattering by exploiting the fact that Majorana neutrinos forbid real vector couplings in non-diagonal transitions.