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

Two-loop helicity amplitudes for gg→W+W−gg\to W^+W^- using high-energy and forward expansions

This paper presents next-to-leading order QCD corrections for the process gg→W+W−gg \to W^+W^- with off-shell WW bosons and virtual top quarks by combining high-energy, forward-scattering, and large-top-mass expansions to achieve precise results across the entire phase space.

Mateusz Czaja, Ben Rott, Matthias Steinhauser, Daniel Stremmer2026-10-21
⚛️ high-energy experiments

LEAF: LUT-aware Efficient Attention on FPGAs

The paper introduces LEAF, the first nanosecond-scale, LUT-aware transformer for FPGAs that achieves ultra-low-latency inference by converting attention mechanisms into FPGA-native layers, resulting in significantly improved accuracy and resource efficiency for real-time applications like jet tagging at CERN.

Arianna Cox, Chang Sun, Lauri Laatu, Benedikt Maier, Aadeesh Sharma, Leo Rozanov, Wayne Luk, Maria Spiropulu, Alexander (…)2026-10-21
⚛️ nuclear experiments

From Harmonic Oscillators to Multiplicity Distributions in Particle Production Processes

This paper proposes an information-theoretic oscillator framework to derive negative binomial and generalized negative binomial distributions for modeling multi-particle production, demonstrating that the latter effectively describes high-multiplicity data and introducing a novel Lerch-type generalization of the Barnes zeta function for non-degenerate systems.

Trambak Bhattacharyya, Maciej Rybczyński, Zbigniew Włodarczyk2026-10-21
⚛️ lattice

Flavor decomposition of electromagnetic multipole moments in [q1q2][qˉ3cˉ][q_1q_2][\bar q_3 \bar c] tetraquarks: Light-quark analogs of Tcs1(2900)0T_{cs1}(2900)^0 with JP=1+J^P = 1^+

This paper employs light-cone QCD sum rules to demonstrate that in JP=1+J^P=1^+ [q1q2][qˉ3cˉ][q_1q_2][\bar q_3 \bar c] tetraquarks with a pseudoscalar antidiquark, the charm quark algebraically decouples from electromagnetic moments, leaving a distinct light-flavor pattern and non-zero quadrupole moments that serve as structural signatures to discriminate between compact and molecular internal architectures.

Ulaş Özdem2026-10-21
⚛️ phenomenology

Probing Lepton Flavor Violation at FCC-ee

This paper demonstrates that the FCC-ee's high-statistics ZZ-pole run will significantly enhance sensitivity to lepton flavor violation in τ\tau decays, often surpassing the reach of direct Z→τℓZ \to \tau\ell and h→τℓh \to \tau\ell searches for various SMEFT operators, particularly semileptonic ones.

L. Allwicher, R. Bartocci, M. Cepeda, C. Cornella, L. P. S. Leal, A. Lusiani, C. Martin Perez, P. Paradisi, E. Scantambu (…)2026-10-21
⚛️ nuclear experiments

A Radiation-Hardened, Fault-Aware Quantized Neural Network That Self-Heals

This paper introduces "Projection Healing," a runtime method that extends the Fault-Aware Training paradigm by reconstructing corrupted quantized neural network weights on commercial hardware without extra replicas, thereby significantly extending operational scrub intervals and improving resilience against radiation-induced bit flips compared to traditional error correction techniques.

Peter Xiangyuan Ma, Joshua S. Bloom2026-10-21
⚛️ general relativity

Minimal-length kinematics of coherent light and a proposed two-color vacuum chronoscopy

This paper resolves the "soccer-ball problem" in generalized uncertainty principle (GUP) theories by demonstrating that macroscopic coherent light pulses inherit single-photon kinematic deformations without energy-dependent suppression, thereby enabling a proposed two-color vacuum chronoscopy experiment to probe Planck-scale physics using petawatt lasers.

Zhi-Wei Wang, Saurya Das, Samuel L. Braunstein2026-10-21
⚛️ high-energy experiments

Resurgence in scalar and spinor QED: The Euler-Heisenberg Lagrangian in parallel field backgrounds

This paper presents the first systematic resurgent analysis of the Euler-Heisenberg Lagrangian in parallel electric and magnetic field backgrounds for both scalar and spinor QED, deriving explicit large-order asymptotic formulas and demonstrating that Padé-Borel resummation techniques can accurately reconstruct the complete non-perturbative instanton structure and Schwinger pair production effects from finite perturbative data.

Drishti Gupta, Arun Thalapillil2026-10-20