activity
20042026
most citedObservation of the Naive-T-odd Sivers Effect in Deep-Inelastic Scattering

303 citations · 2.7k across the 111 of their papers we have counts for

collaborators

119 papers

hep-ph2026

Nucleon Strong-Interactions Size From Charmonium Photoproduction

Xiangdong Ji, Sylvester Joosten, Zein-Eddine Meziani +1

Protons and neutrons differ dramatically in their electromagnetic sizes, but are bound by the strong (color) force and have nearly identical masses, like two twin states of the sam…

nucl-ex2026

First Measurement of Near-Threshold J/ψ Photoproduction on the Neutron

R. Tyson, D. G. Ireland, B. McKinnon +139

We report the first measurement of the total and t-differential cross sections for near-threshold J/ photoproduction on the neutron, obtained with the CLAS12 detector at the Tho…

nucl-ex2026

Multi-Differential DVCS Cross Section Measurement on the Proton in the Valence Region with CLAS12

S. Lee, T. B. Hayward, L. Elouadrhiri +138

We report the measurement of the four-fold differential cross section of deeply virtual Compton scattering (DVCS) on the proton using a longitudinally polarized 10.6 GeV CEBAF elec…

nucl-ex2026

First measurement of polarized spin-density matrix elements and differential cross sections d/d in ~photoproduction off the proton for GeV using CLAS at Jefferson Lab

T. Hu, Z. Akbar, V. Crede +147

We report on the differential cross sections d/d, the unpolarized spin-density matrix elements , , Re\,, and the first extraction of the polari…

nucl-ex2026

ePIC Early Science Report

D. Abbott, N. Abdelrahman, S. Abhijit +781

This Early Science Report from the ePIC Collaboration outlines the compelling physics program achievable during the first years of operation of the Electron-Ion Collider (EIC), pri…

physics.data-an2026

Design Principles for AI-Ready QCD Data with a Barrel Imaging Calorimeter Application

Zhiwan Xu, Sylvester Joosten, Minho Kim +2

Data from large physics collider experiments in Quantum Chromodynamics (QCD) research differ fundamentally from the modalities used in modern foundation models. The heterogeneity o…

physics.ins-det2026

Test-Beam Performance of the AstroPix Silicon Sensor for Imaging Calorimetry

Yoonha Hong, Jeongsu Bok, Geunpil An +34

AstroPix is a high-voltage CMOS HVCMOS monolithic active pixel sensor MAPS developed for future space-based gamma-ray missions. It is also a candidate technology for the imaging la…

hep-ex2026

Measurements of Beam Spin Asymmetries of dihadrons at CLAS12

A. G. Acar, P. Achenbach, J. S. Alvarado +131

A first measurement of beam spin asymmetries for and pairs in semi-inclusive deep inelastic scattering is reported. The asymmetries in the dihadron angular distri…

physics.ins-det2026

Beam Test Performance of AstroPix sensor with 120 GeV protons

Bobae Kim, Regina Caputo, Manoj Jadhav +11

AstroPix is a high-voltage CMOS (HV-CMOS) monolithic active pixel sensor (MAPS) developed for precision gamma-ray imaging and spectroscopy in the medium energy regime, as well as f…

nucl-ex2025

Probing hard/soft factorization via beam-spin asymmetry in exclusive pion electroproduction from the proton

Alicia C. Postuma, Garth M. Huber, D. J. Gaskell +76

Deep exclusive meson production (DEMP) reactions, such as , provide opportunities to study the three-dimensional structure of the nucleon through differential cr…

hep-ph2025

ArgoLOOM: agentic AI for fundamental physics from quarks to cosmos

S. D. Bakshi, P. Barry, C. Bissolotti +12

Progress in modern physics has been supported by a steadily expanding corpus of numerical analyses and computational frameworks, which in turn form the basis for precision calculat…

nucl-ex2025

Measurement of Beam-Recoil Observables and for Photoproduction

CLAS Collaboration, S. Adhikari, B. A. Raue +154

Exclusive photoproduction of final states off a proton target has been an important component in the search for missing nucleon resonances and our understanding of the prod…

hep-ex2025★ 2 cited

Proton Transparency and Neutrino Physics: New Methods and Modeling

S. Dytman, M. Betancourt, N. Steinberg +139

Extracting accurate results from neutrino oscillation and cross section experiments requires accurate simulation of the neutrino-nucleus interaction. The rescattering of outgoing h…

nucl-ex2025

Measurement of single- and double-polarization observables in the photoproduction of ~meson pairs off the proton using CLAS at Jefferson Laboratory

P. Roy, S. Cao, V. Crede +141

The photoproduction of meson pairs off the proton has been studied in the reaction using the CEBAF Large Acceptance Spectrometer (CLAS) and the frozen-sp…

hep-ex2025

Inclusive Electron Scattering in the Resonance Region off a Hydrogen Target with CLAS12

V. Klimenko, D. S. Carman, R. W. Gothe +135

Inclusive electron scattering cross sections off a hydrogen target at a beam energy of 10.6 GeV have been measured with data collected from the CLAS12 spectrometer at Jefferson Lab…

nucl-ex2025

Studying the Strangeness -Term in Hall C via Exclusive Electroproduction

H. T. Klest, S. Joosten, H. Szumila-Vance +56

We propose a measurement of exclusive electroproduction of mesons near threshold in Hall C. We will measure the |t|-dependence of the exclusive electroproduction cross sect…

nucl-ex2024

The EMC Effect of Tritium and Helium-3 from the JLab MARATHON Experiment

D. Abrams, H. Albataineh, B. S. Aljawrneh +131

Measurements of the EMC effect in the tritium and helium-3 mirror nuclei are reported. The data were obtained by the MARATHON Jefferson Lab experiment, which performed deep inelast…

nucl-ex2024

Quasielastic Asymmetry in the Threshold Region

M. Nycz, W. Armstrong, T. Averett +97

A measurement of the double-spin asymmetry from electron-He scattering in the threshold region of two- and three-body breakup of He was performed at Jefferson Lab, for…

nucl-ex2024★ 1 cited

Pion electroproduction measurements in the nucleon resonance region

R. Li, N. Sparveris, H. Atac +46

We report new pion electroproduction measurements in the resonance, utilizing the SHMS - HMS magnetic spectrometers of Hall C at Jefferson Lab. The data focus on a region…

hep-ex2024

New Measurements of the Deuteron to Proton F2 Structure Function Ratio

Debaditya Biswas, Fernando Araiza Gonzalez, William Henry +89

Nucleon structure functions, as measured in lepton-nucleon scattering, have historically provided a critical observable in the study of partonic dynamics within the nucleon. Howeve…

nucl-ex2024★ 2 cited

Measurement of the nucleon spin structure functions for 0.01<<1 GeV using CLAS

A. Deur, S. E. Kuhn, M. Ripani +147

The spin structure functions of the proton and the deuteron were measured during the EG4 experiment at Jefferson Lab in 2006. Data were collected for longitudinally polarized elect…

physics.ins-det2024

Performance of a coarsely pixelated LAPPD photosensor for the SoLID gas Cherenkov detectors

J. Xie, C. Peng, S. Joosten +12

The SoLID spectrometer's gas Cherenkov counters require photosensors that operate in a high luminosity and high background environment. The reference design features arrays of 9 or…

hep-ex2023

Key4hep: Progress Report on Integrations

Erica Brondolin, Juan Miguel Carceller, Wouter Deconinck +22

Detector studies for future experiments rely on advanced software tools to estimate performance and optimize their design and technology choices. The Key4hep project provides a fle…

hep-ex2023

The Key4hep software stack: Beyond Future Higgs factories

Andre Sailer, Benedikt Hegner, Clement Helsens +18

The Key4hep project aims to provide a turnkey software solution for the full experiment lifecycle, based on established community tools. Several future collider communities (CEPC,…