⚛️ Category

hep-ex

2503 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.

⚛️ high-energy experiments

Search for compressed electroweak SUSY production in final states with two τ\tau-leptons in s=13\sqrt{s} = 13 and $13.6TeV TeV pp$ collisions with the ATLAS detector

Using 140 fb⁻¹ of 13 TeV and 53 fb⁻¹ of 13.6 TeV proton-proton collision data, the ATLAS collaboration searched for compressed electroweak SUSY scenarios involving τ\tau-sleptons, charginos, and neutralinos in final states with two τ\tau-leptons, setting mass exclusion limits up to 200 GeV for electroweakinos while observing no significant deviations from the Standard Model that would allow for the exclusion of direct τ\tau-slepton production when combining all channels.

ATLAS Collaboration2026-09-30
⚛️ high-energy experiments

First Measurement of the Superscaling Variable as a Function of Visible Kinematics in Charged-Current Quasi-Elastic Neutrino--Nucleus Scattering

The MINERvA experiment reports the first measurement of the superscaling variable ψvis′\psi^{\prime}_{\rm vis} in charged-current quasielastic neutrino-carbon scattering, revealing that while most models struggle to predict the peak position at low hadronic recoil and muon transverse momentum, the Relativistic Mean Field approach provides the most accurate description of the invisible nuclear missing energy.

The MINERvA Collaboration, L. Giannessi, S. Akhter, Z. Ahmad Dar, N. S. Alex, M. Sajjad Athar, J. Felix, L. Fields, R. G (…)2026-09-30
⚛️ high-energy experiments

Irradiation Studies and Design Optimization of the ATLAS Tile Calorimeter for the High-Luminosity LHC

This paper presents the design optimizations and irradiation test results for the ATLAS Tile Calorimeter's readout electronics and photomultiplier tubes, which are being upgraded to ensure reliable operation under the extreme radiation and data rates expected during the High-Luminosity LHC era starting in 2030.

Róbert Astaloš (on behalf of the ATLAS Tile Calorimeter System)2026-09-30
⚛️ high-energy experiments

The new LHCb beauty-strange state as the bottom partner of the Ds0∗(2317)D_{s0}^*(2317): a LQCD constrained coupled-channel chiral analysis

This paper demonstrates that the newly observed LHCb beauty-strange state is the natural bottom partner of the Ds0∗(2317)D_{s0}^*(2317), emerging as a BˉK\bar{B}K bound state with a large BˉK\bar{B}K component and an isospin-violating width that is successfully described by coupled-channel chiral amplitudes constrained by lattice QCD without requiring direct experimental input.

Miguel Albaladejo, Pablo Encarnación, Albert Feijoo, Juan M. Nieves2026-09-30
⚛️ nuclear experiments

Exposing the parton-hadron transition within jets with energy-energy correlators in pp collisions at s=5.02\sqrt{\textit s}=5.02 TeV

This paper presents a fully-corrected measurement of the energy-energy correlator (EEC) within jets in pp collisions at s=5.02\sqrt{s}=5.02 TeV, revealing a distinct transition region that marks the onset of hadronization and identifies a common energy scale for this process, while demonstrating good agreement with perturbative QCD calculations in the large-angle regime and providing constraints for Monte Carlo event generators.

ALICE Collaboration2026-09-29
⚛️ nuclear experiments

Evidence of nuclear geometry-driven anisotropic flow in OO and Ne$-$Ne collisions at sNN\mathbf{\sqrt{{\textit s}_{\rm\mathbf {NN}}}} = 5.36 TeV

This paper presents the first measurements of elliptic and triangular flow in 16^{16}O$-$16^{16}O and 20^{20}Ne$-$20^{20}Ne collisions at 5.36 TeV, demonstrating that hydrodynamic models incorporating specific nuclear structures successfully describe the data and confirming the presence of nuclear geometry-driven collective flow in small collision systems.

ALICE Collaboration2026-09-29
⚛️ nuclear experiments

Time resolution of the ALICE Time-Of-Flight detector with the first Run 3 pp collisions at s=13.6{\bf \sqrt{\textit{s}} = 13.6} TeV

This paper presents the operation, calibration, and performance of the upgraded ALICE Time-Of-Flight detector using 2022 pp collision data at s=13.6\sqrt{s} = 13.6 TeV, demonstrating a timing resolution better than 80 ps that significantly enhances particle identification capabilities for Run 3 and beyond.

ALICE Collaboration2026-09-29