1495 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 investigates the significant CP violation induced by forward-backward asymmetry in the decay within the phase space dominated by and resonances, predicting asymmetries of up to 35% that are potentially observable by Belle and Belle-II collaborations.
This paper demonstrates that Affleck-Dine baryogenesis can be realized with low-energy, non-supersymmetric physics involving a light scalar field, which produces detectable gravitational waves in the LIGO frequency range, thereby establishing a new complementarity between gravitational wave astronomy and particle physics experiments.
This paper presents NNLO+NNLL threshold resummation results for on-shell -boson pair production at the LHC, demonstrating that the resummation enhances the cross-section by approximately 6.3% at high invariant masses while significantly reducing scale uncertainties from 6.8% to 4.1%.
This paper proposes that ultralight dark matter can be detected at colliders not as a standard isolated resonance, but as a "smeared" oscillating resonance caused by a mediator whose mass varies over time, offering a unique discovery channel that complements existing constraints from atomic clocks.
This paper initiates a precision study of boosted jet substructure using energy correlators applied to hadronic Higgs decays, demonstrating that the two-body decay manifests as a distinct angular peak and that infrared scales like the dead-cone effect and confinement transition are resolvable, thereby enabling precision electroweak studies and new physics searches.
This paper presents PNNL's development and first demonstration of a tunable array of matched centimeter-scale cavities designed to overcome volume and sensitivity limitations for detecting axion dark matter in the 100 micro-eV mass range.
Using BESIII data collected at center-of-mass energies of 4.84, 4.92, and 4.95 GeV, no significant signal for the exotic charmonium-like state was observed in the process , leading to the establishment of 90% confidence level upper limits on the relevant production cross-sections.
This paper utilizes Bayesian thermal analysis of hadron yields from STAR Ru+Ru and Zr+Zr isobar collisions to precisely extract chemical potential differentials in the QCD phase diagram, thereby validating these collisions as a high-precision probe for four-dimensional QCD thermodynamics against lattice-QCD and Chiral Mean Field model predictions.
Using 138 fb of proton-proton collision data at = 13 TeV, the CMS collaboration measured the photon-fusion production cross section of W boson pairs, finding results consistent with Standard Model predictions and establishing stringent constraints on anomalous quartic gauge couplings within an effective field theory framework.
This paper outlines the LUXE experiment's use of high-intensity laser and electron beam collisions to probe non-perturbative strong-field QED phenomena like vacuum pair production, while also exploring how future colliders and beam-dump experiments can extend these studies to higher energy scales and search for new physics.