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 report synthesizes the outcomes of the 2025 EIC-France Workshop, outlining theoretical advancements and strategic priorities for the French hadron-physics community, with a specific focus on immediate opportunities in inclusive diffraction and quarkonium production alongside longer-term goals in pion structure and exclusive three-body final states.
This study presents the first measurement of charged-particle nuclear modification factors in neon-neon collisions and systematically compares them with oxygen-oxygen, xenon-xenon, and lead-lead data to demonstrate that charged-particle suppression scales with nuclear size and is well-described by energy loss models rather than initial-state nuclear effects.
This paper presents a detector-level assessment of Coherent Elastic Neutrino-Nucleus Scattering (CEvNS) observability across various target nuclei using Geant4 simulations, demonstrating how realistic detector effects like energy thresholds and resolution significantly shape measurable recoil spectra and highlighting the critical role of detector response in optimizing future low-threshold experiments.
This paper presents new laboratory constraints on ultralight dark-photon dark matter in the 1–500 kHz mass range, achieving up to three orders of magnitude improvement over previous bounds by utilizing a three-axis magnetometer with a null-axis noise subtraction technique inside a shielded room.
The authors demonstrate that a specific second-order -spin sum rule relating CKM-free hadronic weak charm decay rates holds within the Standard Model, is well-supported by existing data, and can be used to predict unmeasured decay rates.
This paper introduces the first application of Bayes Linear Emulation and History Matching to calibrate non-perturbative models in Monte Carlo event generators, offering a robust method to identify all data-consistent parameter regions rather than relying on traditional best-fit estimates, as demonstrated with hadronisation models in Sherpa.
This paper investigates the potential of the Electron-Ion Collider to detect flavorful lepton number violation via resonant heavy neutral lepton production within the SMEFT framework, demonstrating that with of integrated luminosity and improved muon detection capabilities, the EIC could achieve sensitivities comparable to current LHC constraints.
This paper presents the first measurement of inclusive production at midrapidity in pp collisions at TeV using the ALICE detector, reporting the transverse-momentum differential cross section and its ratio to J/ production, which reveals a mild rise in the ratio with increasing and is compared with NRQCD and ICEM theoretical models.
This paper presents a comprehensive analysis of bottom-charmed meson states using the inverse matrix QCD sum rules formalism, which successfully reconstructs hadronic spectral densities from first principles to determine masses and decay constants that align with experimental data while offering improved numerical stability and reduced systematic uncertainties compared to standard methods.
The ALICE Collaboration reports the first measurement of the charged-particle jet transverse-momentum fraction () carried by prompt and non-prompt J/ mesons in 13 TeV proton-proton collisions, revealing that while PYTHIA 8 simulations qualitatively reproduce the data for , they significantly overestimate the fraction of isolated J/ mesons at high values, highlighting challenges in modeling the hadronization of low-momentum jets.