Interpretation of as a molecular state
Using QCD sum rules, this study interprets the resonance as an -wave molecular pentaquark state and calculates its mass and decay properties, finding results consistent with experimental data.
⚛️ Category
hep-ex
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.
End-to-end event reconstruction for precision physics at future colliders
This paper presents an end-to-end global event reconstruction framework combining geometric algebra transformers and object condensation clustering that significantly outperforms state-of-the-art rule-based algorithms in efficiency, fake-particle suppression, and mass resolution for future collider experiments like FCC-ee, thereby enabling rapid detector design iteration by decoupling performance from detector-specific tuning.
The CMS ME0 Upgrade: Enhancing Forward Muon Reconstruction at the HL-LHC
This paper presents a comprehensive overview of the Muon Endcap 0 (ME0) upgrade for the CMS experiment, detailing its design, production status, and quality assurance procedures aimed at extending forward muon coverage and enhancing reconstruction performance for the High-Luminosity LHC.
Irradiation Studies of TGC Electronics Components for the ATLAS Experiment at High-Luminosity LHC
This paper demonstrates that various commercial off-the-shelf electronics components tested for radiation tolerance meet the specific Total Ionizing Dose and Non-Ionizing Energy Loss requirements for the Thin Gap Chamber frontend electronics in the ATLAS experiment's High-Luminosity LHC upgrade.
Precise measurement of the form factors in and observation of
Using 20.3 fb⁻¹ of data from the BESIII detector, this study presents the most precise measurements to date of the branching fractions and hadronic form factors for the dominant decays, while also reporting the first observation of the process and the first model-independent measurement of the -wave phase shift in the system.
Experimental Advances on Light Baryon Spectroscopy at BESIII Experiment
This paper systematically reviews the significant progress made by the BESIII experiment in light baryon spectroscopy, highlighting recent discoveries of excited nucleon and hyperon states that leverage its unique high-statistics tau-charm energy datasets to advance the understanding of non-perturbative QCD and address the "missing baryon resonances" problem.
Searches in CMS for New Physics in Final States with Leptons
This paper presents recent CMS results from Run-II LHC data searching for heavy mediators predicted by various new physics models in final states containing leptons.
at GeV at future linear colliders
This paper demonstrates that precise measurements of the forward-backward asymmetry in events at GeV are feasible at future linear colliders using full ILD simulations, provided that advanced particle identification techniques like Comprehensive PID and cluster counting are employed to optimize charge reconstruction and maximize sensitivity to electroweak and new-physics effects.
Atmospheric neutrino constraints on Lorentz invariance violation with the first six detection units of KM3NeT/ORCA
Using 1.4 years of atmospheric neutrino data from the first six detection units of the KM3NeT/ORCA detector, this study finds no evidence for isotropic Lorentz invariance violation and establishes competitive new limits on relevant coefficients.
On the robustness of the indirect determination of the width of the detected Higgs boson
This paper demonstrates that while relaxing the assumption of equal on-shell and off-shell Higgs coupling modifiers in Standard Model extensions can allow for a larger total width, realistic constraints still limit this increase to at most a factor of two compared to the standard indirect bounds.