R. M. Whitehill

ORCID: 0000-0001-5007-2473
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About
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Research Areas
  • Particle physics theoretical and experimental studies
  • Quantum Chromodynamics and Particle Interactions
  • High-Energy Particle Collisions Research
  • Medical Imaging Techniques and Applications
  • Radiomics and Machine Learning in Medical Imaging
  • Advanced X-ray and CT Imaging

Old Dominion University
2024

Wichita State University
2023

We perform a new global analysis of spin-dependent parton distribution functions with the inclusion Ioffe time pseudo-distributions computed in lattice QCD (LQCD), which are directly sensitive to gluon helicity distribution, $Δg$. These data have an analogous relationship distributions as do experimental cross sections, and can be readily included analyses. focus particular on constraining capability current LQCD sign $Δg$ at intermediate momentum fractions $x$, was recently brought into...

10.1103/physrevd.109.036031 article EN cc-by Physical review. D/Physical review. D. 2024-02-27

A recent global QCD analysis of jet production and other polarized scattering data has found the presence negative solutions for gluon helicity distribution in proton, $\Delta g$, along with traditional g > 0$ solutions. We consider semi-inclusive deep-inelastic hadrons produced large transverse momentum as a means constraining dependence g$ on parton fraction, $x$. Focusing double longitudinal spin asymmetry, we identify kinematics relevant future experiments at Jefferson Lab Electron-Ion...

10.1103/physrevd.107.034033 article EN cc-by Physical review. D/Physical review. D. 2023-02-27

At high-energy collider experiments, generative models can be used for a wide range of tasks, including fast detector simulations, unfolding, searches physics beyond the Standard Model, and inference tasks. In particular, it has been demonstrated that score-based diffusion generate high-fidelity accurate samples jets or events. This work expands on previous in three distinct ways. First, our model is trained to entire events, all particle species with complete kinematic information. We...

10.48550/arxiv.2410.22421 preprint EN arXiv (Cornell University) 2024-10-29

A recent global QCD analysis of jet production and other polarized scattering data has found the presence negative solutions for gluon helicity distribution in proton, $Δg$, along with traditional $Δg > 0$ solutions. We consider semi-inclusive deep-inelastic hadrons produced large transverse momentum as a means constraining dependence $Δg$ on parton fraction, $x$. Focusing double longitudinal spin asymmetry, we identify kinematics relevant future experiments at Jefferson Lab Electron-Ion...

10.48550/arxiv.2210.12295 preprint EN other-oa arXiv (Cornell University) 2022-01-01
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