1387 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 the design, key components, and future prospects of the High-energy Proton-beam Experiment Station (HPES) at CSNS, a new facility utilizing 1.6 GeV protons to support particle detector development, aerospace chip irradiation studies, and nuclear data measurements.
This paper presents a combined analysis of LHCb, ATLAS, and CMS data that confirms the resonance with overwhelming significance and provides substantially strengthened evidence for the state, highlighting the critical role of interference effects in fully-charmed tetraquark spectroscopy.
This paper presents recent results from the IceCube Neutrino Observatory, including the follow-up on the steady neutrino source NGC 1068, measurements of flavor composition and prompt atmospheric neutrino limits, and dark matter searches, while outlining future prospects with the IceCube Upgrade and IceCube-Gen2 to advance high-energy astrophysics and particle physics.
The STAR Collaboration reports that hypertriton yields in central Au+Au collisions at RHIC energies between 3.2 and 27 GeV increase with decreasing energy but remain significantly below thermal model predictions, while a constant double ratio relative to light nuclei suggests a suppressed formation probability driven by weaker hyperon-nucleon interactions.
This paper investigates two-body charmed anti-charmed baryonic decays using a topological amplitude approach to decompose various final states, model significant SU(3) flavor symmetry breaking effects, and provide predictions for decay rates while highlighting the substantial uncertainties arising from current limitations in understanding these symmetry-breaking mechanisms.
This paper experimentally demonstrates the detection of momentum transfers from individual gas collisions with an optically levitated nanoparticle, validating theoretical models and establishing a proof-of-principle for primary pressure sensors and precision measurements of fundamental particle interactions.
This paper presents the design and simulation results of a positron transport system for the Muonium-to-Antimuonium Conversion Experiment (MACE), demonstrating high geometric acceptance, precise position resolution, and a time-of-flight capability that enables a rejection factor for internal conversion backgrounds to facilitate the search for charged lepton flavor violation.
Using data from the Belle and Belle II experiments, this study measures Born cross sections for and production, revealing that the state decays exclusively into while the decays into the non- channel, and provides precise measurements of the mass, width, and relevant partial width products.
This paper presents a quality control method for the Mu2e straw tube tracker that identifies channels with inadequate gas flow by quantifying the onset time of ionization gain during gas exchange using time-dependent current measurements from an 55Fe source.
The ReD experiment utilized a dual-phase Time Projection Chamber to measure the ionization yield of argon for nuclear recoils between 2 and 10 keV, revealing a higher yield at lower energies that is critical for optimizing the sensitivity of argon-based dark matter detectors to low-mass Weakly Interacting Massive Particles.