hep-ex papers | Gist.Science

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

GRACE: an Agentic AI for Particle Physics Experiment Design and Simulation

This paper introduces GRACE, an agentic AI system that autonomously designs and optimizes particle physics experiments by extracting structured representations from natural language or papers, constructing simulations, and iteratively proposing and evaluating detector modifications using first-principles Monte Carlo methods to improve physics performance under physical and budgetary constraints.

Justin Hill, Hong Joo Ryoo2026-02-18

⚛️ high-energy experiments

Excluding MeV-scale QCD axions by $K_L \to π^0π^0 a$ at KTeV

This paper reexamines the viability of MeV-scale QCD axions by deriving new constraints from kaon decay measurements, particularly the KTeV $K_L \to \pi^0 \pi^0 e^+ e^-$ data, and concludes that the previously suggested parameter window is effectively excluded even after accounting for theoretical uncertainties.

Takaya Iwai, Ryosuke Sato, Kohsaku Tobioka, Takumu Yamanaka2026-02-18

⚛️ nuclear theory

Charm and strange meson fragmentation functions

This paper computes charm and strange meson fragmentation functions by deriving and solving a set of twenty-five coupled jet equations based on Poincaré covariant Bethe-Salpeter wave functions, thereby providing a consistent description of quark hadronization across both light and heavy sectors.

Roberto C. da Silveira, Ian C. Cloët, Bruno El-Bennich, Fernando E. Serna2026-02-18

⚛️ high-energy experiments

New Pathways in Neutrino Physics via Quantum-Encoded Data Analysis

This paper proposes a quantum-encoded data analysis methodology using parity observables on an 8-qubit processor to compress and recover neutrino telescope event information with 84% fidelity, enabling the classification of electron- and muon-neutrino events to overcome the limitations of traditional triggers and the "street light effect" in particle physics.

Jeffrey Lazar, Santiago Giner Olavarrieta, Giancarlo Gatti, Carlos A. Argüelles, Mikel Sanz2026-02-17

⚛️ high-energy experiments

Minimal complete tri-hypercharge theories of flavour

This paper proposes and analyzes two minimal, ultraviolet-complete tri-hypercharge models that explain Standard Model fermion masses and mixings through three correlated physical scales, predicting that the lightest $Z'$ boson in these theories is discoverable via dilepton searches at LHC Run 3.

Mario Fernández Navarro, Stephen F. King, Avelino Vicente2026-02-17

⚛️ high-energy experiments

Measured Lepton Magnetic Moments

This paper highlights how the high-precision measurements of electron and muon magnetic moments serve as critical tests of the Standard Model and quantum field theory, with the electron offering the most stringent validation of current theories and the muon providing a sensitive probe for discovering new physics beyond the Standard Model.

Gerald Gabrielse, Graziano Venanzoni2026-02-17

⚛️ high-energy experiments

Deep learning approaches to top FCNC couplings to photons at the LHC

This paper demonstrates that transformer-based deep learning architectures significantly outperform traditional cut-based analyses in detecting top quark flavor-changing neutral current interactions with photons at the LHC, enabling the exploration of rare branching ratios as low as $10^{-6}$ at the high-luminosity phase.

Benjamin Fuks, Sumit K. Garg, A. Hammad, Adil Jueid2026-02-17

⚛️ high-energy experiments

TrackCore-F: Deploying Transformer-Based Subatomic Particle Tracking on FPGAs

This paper presents methodologies and tools for deploying Transformer-based subatomic particle tracking models onto FPGAs, addressing current tool limitations and resource constraints through monolithic or automated partitioned synthesis to achieve low-latency inference.

Arjan Blankestijn, Uraz Odyurt, Amirreza Yousefzadeh2026-02-17

⚛️ lattice

Exotic $T_{c\bar s0}^a(2900)^0$ and $T_{c\bar s0}^a(2900)^{++}$ states in Born-Oppenheimer approximation

Using the Born-Oppenheimer approximation within a dynamical diquark model, this study identifies the $T_{c\bar s0}^a(2900)$ states as compact tetraquarks composed of axial-vector diquark pairs, supported by calculated root-mean-square radii significantly smaller than 1 fm.

Halil Mutuk2026-02-17

⚛️ lattice

Next-to-Leading-Order QCD Predictions for the $Σ$ Dirac Form Factors

This paper presents state-of-the-art theoretical predictions for the electromagnetic Dirac form factors of $\Sigma$ hyperons by computing next-to-leading-order QCD corrections within the hard-collinear factorization framework and combining them with lattice QCD-determined distribution amplitudes.

Bo-Xuan Shi, Hui-Xin Yu, Xue-Chen Zhao2026-02-17

← Previous Next →

hep-ex

GRACE: an Agentic AI for Particle Physics Experiment Design and Simulation

Excluding MeV-scale QCD axions by KL→π0π0aK_L \to π^0π^0 aKL​→π0π0a at KTeV

Charm and strange meson fragmentation functions

New Pathways in Neutrino Physics via Quantum-Encoded Data Analysis

Minimal complete tri-hypercharge theories of flavour

Measured Lepton Magnetic Moments

Deep learning approaches to top FCNC couplings to photons at the LHC

TrackCore-F: Deploying Transformer-Based Subatomic Particle Tracking on FPGAs

Exotic Tcsˉ0a(2900)0T_{c\bar s0}^a(2900)^0Tcsˉ0a​(2900)0 and Tcsˉ0a(2900)++T_{c\bar s0}^a(2900)^{++}Tcsˉ0a​(2900)++ states in Born-Oppenheimer approximation

Next-to-Leading-Order QCD Predictions for the ΣΣΣ Dirac Form Factors

Excluding MeV-scale QCD axions by $K_L \to π^0π^0 a$ at KTeV

Exotic $T_{c\bar s0}^a(2900)^0$ and $T_{c\bar s0}^a(2900)^{++}$ states in Born-Oppenheimer approximation

Next-to-Leading-Order QCD Predictions for the $Σ$ Dirac Form Factors