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 paper presents a theoretical investigation of inclusive production in proton-proton collisions at SPD/NICA energies using TMD gluon densities, revealing the dominance of color-octet mechanisms and distinct hardening patterns that offer crucial guidance for upcoming experimental measurements.
This paper presents a theoretical study of azimuthal decorrelation and transverse momentum imbalance in LHC dijet production using the recoil-free winner-take-all scheme, deriving factorization formulae in soft-collinear effective theory to perform high-precision resummation of global and non-global logarithms while demonstrating the observables' robustness against non-perturbative effects.
This study presents the first experimental implementation of an environment-aware axion dark matter search using a K-Rb-Ne comagnetometer, which leverages Earth-induced field enhancements to set the most stringent limits to date on axion-neutron derivative interactions, improving sensitivity by up to three orders of magnitude over previous methods that ignored terrestrial matter effects.
This study utilizes PYTHIA8 to investigate two-particle differential balance functions in and low-multiplicity $pp$ collisions at TeV, revealing a systematic difference where the charge-dependent correlation width is narrower in events compared to $pp$ collisions, thereby offering insights into particle production mechanisms in small systems.
The paper introduces PhyGHT, a physics-guided hypergraph transformer equipped with a pileup suppression gate that effectively mitigates extreme background noise in High-Luminosity LHC data, outperforming existing methods in reconstructing top-quark signals and enhancing discovery potential.
Using 138 fb of proton-proton collision data at 13 TeV collected by the CMS detector, this paper presents the first search for pair-produced heavy resonances decaying into a top quark, a photon, and a gluon, setting 95% confidence level upper limits that exclude spin-1/2 and spin-3/2 t particles with masses below 930 GeV and 1330 GeV, respectively, without observing any significant deviation from the background-only hypothesis.
Using a dataset of over 10 billion events collected by the BESIII experiment, this study performs a precise measurement of entangled pairs to determine decay parameters and CP-violating observables with record precision, finding results consistent with CP conservation.
This paper utilizes the observed 11-year jet precession period of M87* to constrain the parameters of a rotating black hole in Bumblebee gravity, demonstrating how Lorentz-symmetry breaking affects spherical orbits and innermost stable spherical orbits, and suggesting that a warp radius exceeding 16 may indicate the presence of a non-vacuum Bumblebee vector field when combined with EHT shadow constraints.
This paper presents a first-principle model explaining low-energy radon-induced backgrounds from electrode grids in dual-phase xenon TPCs, which aligns with data from the LZ and LUX experiments and offers strategies for mitigating these backgrounds in future dark matter searches.
This paper presents an analytical formulation for systematic errors in spin precession within storage rings, specifically addressing the requirements for measuring muon anomalous magnetic moments and electric dipole moments with high precision by determining precession frequencies up to second-order corrections.