2503 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 potential for the High-Luminosity LHC to detect lepton number violation via same-sign dilepton plus jet signatures in a radiative neutrino mass model with leptoquarks, finding that it can probe leptoquark masses up to approximately 1.5 TeV and unambiguously establish the Majorana nature of neutrinos.
This paper proposes and evaluates differentiable and Bayesian optimization strategies for automatically determining optimal bin boundaries in high-energy physics analyses, demonstrating that using Gaussian Mixture Models to define flexible regions in multi-dimensional discriminant spaces significantly improves signal significance compared to traditional manual or equidistant binning methods.
Using the full Run 2 dataset of 140 fb collected by the ATLAS detector at TeV, this paper presents a search for boosted production in final states with same-sign leptons and -jets, finding no significant deviation from the Standard Model and setting 95% confidence level limits on the quartic coupling modifier within the range of approximately $-1.9$ to $3.9$.
Using a large sample of events collected by the BESIII detector, researchers observed a new pseudoscalar resonance and significant threshold enhancements in the system dominated by and partial waves, providing new insights into light hadron spectroscopy and baryon-antibaryon dynamics.
The LHCb experiment has reported the first observation of a new, unexpectedly light and narrow beauty-strange resonance with over seven standard deviations of significance, marking a breakthrough in understanding exotic multi-quark hadrons and the chiral dynamics of the strong interaction.
This study employs a consistent open-quantum-system transport framework to demonstrate that the same microscopic transport coefficients successfully describe bottomonium suppression across Pb-Pb, O-O, and Ne-Ne collisions, supporting a common origin for these effects in deconfined matter despite significant variations in system size.
This paper reviews the synergistic relationship between relativistic heavy-ion collision experiments and lattice QCD calculations in characterizing high-temperature QCD matter, highlighting key areas such as the equation of state, transport properties, and the search for a critical point while addressing the challenges of comparing equilibrium theory with dynamic experimental systems.
This paper proposes a dedicated experimental scheme to observe the Nonlocal Advantage of Quantum Coherence (NAQC) in tau-lepton pairs produced at Belle~II and FCC-$ee$ colliders, demonstrating that high-precision measurements can certify this strongest form of quantum correlation for the first time in a high-energy collider setting.
Using LHCb Run 2 data, this paper measures the lifetime ratio of to baryons to be , yielding an improved lifetime of ps that aligns with heavy quark expansion theoretical predictions.
This paper presents a feasibility study for measuring spin-spin correlations in pairs at the SPD experiment at NICA, demonstrating that the detector's capabilities and polarized beams will enable investigations into spin structure, hadronization dynamics, and the interplay between perturbative and non-perturbative production mechanisms at ~GeV.