1429 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 proposes using the Artru-Collins asymmetry in dihadron fragmentation from -wave bottomonium () decays as a direct and unambiguous probe of the color-octet mechanism, offering a novel method to extract the ratio of color-octet to color-singlet matrix elements and resolve discrepancies between lattice calculations and phenomenological determinations using Belle II data.
The ALICE collaboration at the LHC reports the first measurement of the transverse-momentum differential production cross section of B mesons in proton-proton collisions at TeV down to , finding results consistent with perturbative quantum-chromodynamics models.
This paper proposes novel collider methods utilizing azimuthal asymmetries of dihadron production to uniquely probe light-quark dipole moments with linear sensitivity, enabling the disentanglement of up- and down-quark contributions, separation of photon and weak boson effects, and simultaneous determination of real and imaginary parts to significantly strengthen constraints on potential CP-violating new physics.
This paper demonstrates that the choice of prescription in the Collins-Soper-Sterman framework introduces a significant intrinsic theoretical uncertainty in Transverse Momentum Dependent distribution extractions, yielding consistent results for low-energy data but causing substantial discrepancies in intermediate-to-high energy predictions.
This study employs QCD light-cone sum rules to calculate the magnetic dipole moments of hidden-charm pentaquarks using four distinct diquark-diquark-antiquark interpolating currents, demonstrating that these electromagnetic observables are highly sensitive to internal quark configurations and can effectively discriminate between compact and molecular structural models.
This paper presents a comprehensive global analysis of Energy-Energy Correlation data across a wide range of center-of-mass energies, utilizing N³LL resummation matched to fixed-order calculations and including non-perturbative power corrections to precisely determine the strong coupling constant and non-perturbative QCD parameters.
This paper presents the first study demonstrating that quantum machine learning models, specifically Neural Projected Quantum Kernels and Quantum Convolutional Neural Networks, can achieve classification performance comparable to classical methods for neutrino telescope events, with the NPQK approach reaching nearly 80% accuracy on both simulators and the IBM Strasbourg quantum processor.
This paper demonstrates that combining ionization measurements from a Time Projection Chamber with time-of-flight data from silicon-based inner and outer trackers significantly enhances charged-hadron identification performance across a broad momentum range for the Circular Electron-Positron Collider.
This paper demonstrates that simulation-based inference methods, particularly optimal-observable estimators and robust likelihood-ratio approaches, offer superior or comparable sensitivity to $HWW$ anomalous couplings in the channel compared to traditional histogram analyses, highlighting their potential to surpass current LHC constraints with Run 3 data.
Using the constituent quark potential model combined with the Gaussian expansion and complex scaling methods, this study systematically investigates S-wave singly heavy tetraquark systems with multiple strange quarks, finding no bound states but identifying several compact resonances in the charm and bottom sectors that decay into specific meson pairs and serve as targets for future experimental searches.