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 reports new measurements of strong-phase differences in neutral meson decays using BESIII's large dataset near the threshold, alongside the first observation of correlated pairs above this threshold, which enables novel techniques for determining strong phases essential for CP violation studies.
This paper reviews recent LHCb and Belle II measurements of time-integrated CP asymmetries in hadron decays, highlighting progress in determining the CKM angle , the first observation of CP violation in baryon decays, and new studies of direct CP violation in mesons, while also discussing future prospects.
This paper presents machine learning techniques for jet energy calibration and flavor tagging at LHCb, which are applied to search for inclusive and decays in 13 TeV $pp$ collisions, resulting in observed 95% confidence level upper limits of 6.6 and 1003 times the Standard Model cross-section, respectively.
This paper demonstrates that using the latest LZ 2025 data to detect cosmic-ray-boosted light dark matter significantly improves constraints on sub-MeV electrophilic dark matter, surpassing previous XENONnT limits and probing unexplored mediator parameter spaces even against neutrino detector benchmarks.
This study demonstrates through WeightField2 simulations that ultra-thin (20 m) 4H-SiC Low Gain Avalanche Diodes offer superior radiation hardness and timing resolution below 25 ps compared to silicon and diamond, making them ideal for high-luminosity collider environments.
This paper derives explicit expressions for parton helicities at arbitrary kinematics within the double-logarithmic approximation, advocates for -factorization over collinear factorization when accounting for orbital angular momentum, and demonstrates that DGLAP asymptotics are less singular at small than Regge asymptotics.
This paper presents the first implementation and validation of the Martini-Ericson-Chanfray-Marteau RPA-based model for quasielastic and multinucleon neutrino and antineutrino interactions within the GENIE event generator, demonstrating reasonable agreement with experimental data from T2K and MicroBooNE.
The HAYSTAC experiment used Phase II data to exclude dark photon kinetic couplings above in the 19.46–19.52 eV range and in the 16.96–19.46 eV range, thereby ruling out a previously reported signal at 19.5 eV.
This paper presents the technical design and performance studies of the Forward Spectator Detector (FSD), a scintillator-based system crucial for the CBM experiment at FAIR to reconstruct the reaction plane and determine collision centrality in the study of highly compressed nuclear matter.
This paper presents the status and prospects of the ESSnuSB+ project, an extension of the ESSnuSB design study that aims to precisely measure neutrino-nucleus cross-sections in the 200–600 MeV range and explore sterile neutrino physics through the development of new facilities and detectors.