2092 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 introduces an optimal transport-based model calibration framework that resolves simulation-data discrepancies in high-dimensional particle physics simulations, enabling the unbiased application of powerful foundation models for tasks like jet tagging at the Large Hadron Collider.
Using 138 fb of proton-proton collision data at 13 TeV collected by the CMS experiment, this paper presents a combined search for nonresonant Higgs boson pair production that sets the most stringent limits to date on the inclusive production cross section, constrains the Higgs trilinear self-coupling and vector boson coupling modifiers, and explores various new physics scenarios within the Higgs effective field theory framework.
This paper establishes a baseline for event reconstruction in the ANNIE detector using only conventional photomultiplier tubes and a muon spectrometer, demonstrating that a pattern-recognition-based fit achieves a 60 cm vertex uncertainty, 13.2-degree directional uncertainty, and approximately 10% energy resolution for BNB muon neutrino CC0pi events.
The NEXT collaboration reports the first commissioning results from the NEXT-100 detector using Kr calibration data, demonstrating an energy resolution of 4.16% FWHM in a fiducial region that extrapolates to a sub-1% resolution at the double beta decay energy, thereby meeting the experiment's design target.
This paper identifies as the minimal continuous symmetry required to protect TeV-scale new physics from flavor constraints, demonstrating that this framework can reproduce observed fermion hierarchies with minimal symmetry breaking while significantly expanding the viable parameter space for collider-accessible scenarios beyond standard Minimal Flavor Violation.
This paper demonstrates that the TRIDENT neutrino telescope will surpass the thermal freeze-out benchmark for dark matter annihilation in the Galactic Centre by leveraging cascade events and accounting for a previously overlooked background of Galactic neutrinos, thereby probing untested regions of parameter space.
Using 138 fb of 13 TeV proton-proton collision data from the CMS experiment, this paper presents the first LHC search for heavy scalar resonances decaying into a Higgs boson and a Higgs-like scalar in the all-hadronic 4q final state, employing machine-learning techniques to identify boosted topologies and setting stringent upper limits on the production cross section without observing any significant excess over the Standard Model background.
This paper presents an agnostic search strategy for single vector-like top partner production at a 3 TeV lepton collider using the recoil mass technique, demonstrating a discovery potential exceeding significance for masses at the lowest benchmarks when the coupling strength surpasses approximately 0.3 under realistic conditions including beam polarization and initial-state radiation.
Using a dataset of events collected by the BESIII detector, this study performs the first simultaneous measurement of the weak decay parameters and CP-sensitive observable for and pairs, while also extracting weak and strong phase differences and polarization correlations.
This paper demonstrates that non-ALD Planacon MCP-PMTs used in the ALICE Fast Interaction Trigger can maintain excellent time resolution up to an integrated anode charge of 2 C/cm² through low-gain operation, while also revealing that their effective aging is partially mitigated by self-recovery during beam-off periods and that pre-irradiation noise characteristics can predict faster aging outliers.