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 utilizes an quiver gauge theory to classify and predict four distinct scenarios of additional TeV-scale particles that could be discovered during the Run 4 of the upgraded LHC, which is scheduled to begin in 2030.
Using 13 TeV proton-proton collision data from 2017, the ATLAS collaboration conducted a model-independent search for invisible particles produced in photon-photon interactions by reconstructing the missing mass via forward proton tagging, finding no significant excess over Standard Model predictions and setting upper limits on fiducial cross sections for various signal models.
Using 2021 data, the KOTO experiment conducted the first search for the decay and searched for axion-like particles in the channel, observing three candidate events that resulted in upper limits on the branching ratios for both processes at the 95% confidence level.
This paper investigates elastic proton-proton and pion-proton scattering within the framework of holographic QCD by modeling Pomeron and Reggeon exchanges as Reggeized spin-2 glueball and vector meson propagators, respectively, and demonstrates that the resulting total and differential cross sections, including Coulomb interactions, align well with experimental data across a wide kinematic region.
This study reports the first laser-shock experiments on high entropy alloy microfilms probed by an X-ray free electron laser, revealing a transient 5.1% lattice compression under approximately 55 GPa of shock pressure and demonstrating the feasibility of using this technique to determine the equation of state for these emerging materials.
This paper constructs a global function designed for the simultaneous fitting of correlated energy-dependent cross sections by incorporating correlations between different processes and energy points, as well as uncertainties from integrated luminosity and center-of-mass energy measurements.
This paper employs a quark combination model within a hadronic coalescence framework to systematically analyze the production of light nuclei and hypernuclei in Au-Au collisions across the RHIC Beam Energy Scan, successfully explaining existing experimental data for species like deuterons and hypertritons while predicting yields for various -hypernuclei and exploring their production correlations as a function of collision energy.
This paper reports the commissioning of a new Penning-Malmberg trap at CERN's GBAR experiment that achieves a record accumulation of over antiprotons in under 35 minutes and delivers antiprotons per shot with reduced emittance, significantly enhancing the production rate of antihydrogen beams for gravitational studies.
This paper introduces the hyperbolic form factor as a bilateral Laplace transform of density distributions to model Yukawa interactions mediated by massive particles, applying it to Earth's density profile to derive significantly relaxed coupling limits for new spin-0 and spin-1 mediators with masses around eV/.
This study demonstrates that recoil corrections, previously considered negligible, significantly weaken the binding energy and stability of various heavy-flavor pentaquark molecules formed by an SU(3) anti-triplet baryon and a meson, particularly in specific isospin-singlet channels.