1442 papers
Hep-Ex explores the fascinating intersection where particle physics meets experimental reality. This field investigates how scientists build massive detectors and accelerate particles to test the fundamental laws of nature, turning abstract theories into measurable data. It is the rigorous process of searching for new particles or forces that could reshape our understanding of the universe, often requiring years of collaboration and engineering.
At Gist.Science, we ensure these discoveries become accessible to everyone. We process every new preprint in this category directly from arXiv, generating both plain-language explanations for curious readers and detailed technical summaries for specialists. Our goal is to bridge the gap between complex experimental results and public understanding without losing scientific nuance.
Below are the latest papers in Hep-Ex, freshly summarized and ready for you to explore.
This paper presents the first study of jet substructure modifications during the bottom-up evolution of out-of-equilibrium QCD matter, demonstrating that the early stages of bulk matter evolution in heavy-ion collisions leave a sizable imprint on jet radiation patterns and establishing a foundation for incorporating pre-equilibrium dynamics into realistic jet quenching models.
This paper utilizes QCD light-cone sum rules to calculate the magnetic dipole, electric quadrupole, and magnetic octupole moments of , , and molecular pentaquarks, establishing a hierarchy of magnetic moments and spatial deformation signatures that serve as critical benchmarks for distinguishing their molecular structure from compact exotic hadron models.
This whitepaper proposes the Hyperon-Nucleon Spectrometer (H-NS) at the High-Intensity heavy-ion Accelerator Facility (HIAF) to systematically investigate the unresolved polarization puzzle through high-precision measurements of hyperon and proton spin observables across a wide range of collision energies and systems.
This paper introduces the Reweighting Adversarial Network (RAN), a novel unbinned unfolding technique that utilizes a particle-level reweighting function guided by a Wasserstein critic to overcome support overlap limitations and outperform state-of-the-art methods in accuracy and computational efficiency.
This paper presents updated Standard Model predictions and comprehensive constraints on the lepton's weak dipole moments using current data from the LHC and -pole observables, while projecting that future FCC-$ee$ and HL-LHC experiments will significantly enhance sensitivity to heavy New Physics, potentially making these moments the dominant probes for such operators.
This study presents detailed projections demonstrating that the Electron-Ion Collider in China (EicC) can precisely measure pion and kaon structure functions via the Sullivan process with statistical uncertainties below 5% and 8%, respectively, thereby significantly advancing our understanding of meson parton distributions and bridging the gap between fixed-target and collider-era measurements.
This paper proposes a novel search strategy using the LHCb Vertex Locator's unique forward geometry and software trigger to detect the distinctive back-to-back, planar hit patterns of quirk pairs, thereby probing parameter regions inaccessible to current ATLAS and CMS searches.
This paper analyzes how upcoming high-precision measurements of neutrino oscillation parameters, mass ordering, and absolute mass scales will constrain and discriminate between five major classes of leptonic flavor models, potentially resolving the long-standing flavor puzzle.
This paper summarizes recent higher-order computational progress on signal-background interference effects in gluon-fusion Higgs boson production, demonstrating that destructive interference reduces the resonant production rates by approximately 1.6% in the channel and 3% in the mode.
This paper proposes that gauged abelian flavor symmetries can protect the axion from Planck-suppressed operators to solve the strong CP problem while explaining flavor hierarchies, leading to a distinctive plateau-valley gravitational wave spectrum from cosmic string networks that serves as a unique probe complementary to low-energy flavor experiments.