1434 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 a unified theoretical description of experimental data for decays into and accompanied by pion or kaon pairs, utilizing unitary and analytic final-state interactions to reveal universal coupling patterns, a distinct non-charmonium nature for the , and the significant role of the resonance while predicting related branching fraction ratios and invariant mass distributions.
This paper reports the measurement of near-threshold photoproduction cross sections from the J/-007 experiment at Jefferson Lab, which, when combined with electron decay data and analyzed via Holographic QCD, yields precise constraints on the proton's gluonic gravitational form factor that agree with lattice QCD calculations and support a spatial picture of gluon dominance at larger radii with confining inward pressure.
This paper presents a hybrid quantum-classical framework that computes leading-order helicity amplitudes for scattering on gate-based quantum hardware to derive Standard Model and Effective Field Theory constraints consistent with precision collider data.
This paper proposes a novel crystal electromagnetic calorimeter design for the CEPC that utilizes orthogonally arranged crystal bars and an interleaved trapezoidal module structure to achieve the three-dimensional shower imaging required for Particle Flow Analysis while maintaining excellent energy resolution of .
This paper evaluates the physics potential of elastic neutrino-electron scattering at current and future nuclear reactor experiments (CLOUD, TAO, and DANSS), demonstrating their capability to improve the precision of the weak mixing angle measurement and establish stringent constraints on non-standard neutrino interactions and magnetic moments.
Using QCD sum rules with the iterative dispersion relation method to handle complex loop diagrams, this study predicts that scalar and dibaryons lie lower in energy than their tensor counterparts, with the former appearing as a resonance just above the threshold and the latter potentially forming bound states.
This paper demonstrates that the correlated fluctuations between the depth of shower maximum and muon content in extensive air showers provide a new, robust probe of forward hadron production in proton-air collisions at ultra-high energies, effectively isolating hadronic physics uncertainties from shower development to access kinematic regimes beyond the reach of terrestrial accelerators.
This review summarizes recent BESIII experiment results on hyperon physics, highlighting world-leading constraints on new physics beyond the Standard Model through studies of dark and invisible particles, baryon- and lepton-number violation, and a three-orders-of-magnitude improvement in the sensitivity to the electric dipole moment using quantum-entangled pairs.
This paper presents measurements of near-threshold J/ photoproduction cross sections using the CLAS12 detector at Jefferson Lab, providing new experimental constraints on QCD models regarding the proton's gluonic structure and hadronic mass generation.
The ReD experiment extends direct measurements of argon nuclear recoil ionization yield into the critical 2–10 keV sub-keV regime, revealing enhanced yields at low energies and motivating the upgraded ReD+ phase to further advance low-mass WIMP dark matter searches.