Search Results for author: W. Melnitchouk

Found 6 papers, 1 papers with code

Accelerating Markov Chain Monte Carlo sampling with diffusion models

1 code implementation4 Sep 2023 N. T. Hunt-Smith, W. Melnitchouk, F. Ringer, N. Sato, A. W Thomas, M. J. White

Global fits of physics models require efficient methods for exploring high-dimensional and/or multimodal posterior functions.

Image Generation

First analysis of world polarized DIS data with small-$x$ helicity evolution

no code implementations11 Feb 2021 Daniel Adamiak, Yuri V. Kovchegov, W. Melnitchouk, Daniel Pitonyak, Nobuo Sato, Matthew D. Sievert

We present a Monte Carlo based analysis of the combined world data on polarized lepton-nucleon deep-inelastic scattering at small Bjorken $x$ within the polarized quark dipole formalism.

High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory

Simultaneous Monte Carlo analysis of parton densities and fragmentation functions

no code implementations12 Jan 2021 E. Moffat, W. Melnitchouk, T. C. Rogers, N. Sato

We perform a comprehensive new Monte Carlo analysis of high-energy lepton-lepton, lepton-hadron and hadron-hadron scattering data to simultaneously determine parton distribution functions (PDFs) in the proton and parton to hadron fragmentation functions (FFs).

High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Theory

Octet and decuplet baryon self-energies in relativistic SU(3) chiral effective theory

no code implementations14 Dec 2020 P. M. Copeland, Chueng-Ryong Ji, W. Melnitchouk

The self-energies of the full set of flavor SU(3) octet and decuplet baryons are computed within a relativistic chiral effective theory framework.

High Energy Physics - Phenomenology Nuclear Theory

Simulation of electron-proton scattering events by a Feature-Augmented and Transformed Generative Adversarial Network (FAT-GAN)

no code implementations29 Jan 2020 Yasir Alanazi, N. Sato, Tianbo Liu, W. Melnitchouk, Pawel Ambrozewicz, Florian Hauenstein, Michelle P. Kuchera, Evan Pritchard, Michael Robertson, Ryan Strauss, Luisa Velasco, Yaohang Li

We apply generative adversarial network (GAN) technology to build an event generator that simulates particle production in electron-proton scattering that is free of theoretical assumptions about underlying particle dynamics.

Generative Adversarial Network

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