Updated flexible global parametrization of generalized parton distributions from elastic and deep inelastic inclusive scattering data Article Swipe
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· 2025
· Open Access
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· DOI: https://doi.org/10.48550/arxiv.2511.03065
An updated flexible parametrization of the generalized parton distributions in the quark, antiquark and gluon sectors is presented using constraints from high precision electron nucleon deep inelastic scattering data, as well as from the $u$, $d$ quark and gluonic contributions to the nucleon electromagnetic elastic form factors. The latter include recently updated lattice QCD moment calculations. The generalized parton distributions in the vector sector are $H$ and $E$. We rigorously constrain the partonic components, $H_{u_v}$, $H_{d_v}$, $H_{\bar{u}}$, $H_{\bar{d}}$, $H_{\bar{s}}$ and $H_{g}$, and the analogous quantities for $E$, with proper uncertainty quantification. These distributions obey leading order perturbative QCD evolution equations in $α_S$. Parametric forms at the initial scale, $Q_o^2 = 0.58$ $\mathrm{GeV}^2$, for both quarks and gluon distributions are presented as a function of the relevant kinematic variables, namely, the parton momentum fraction, $x$, the skewness, $ξ$, and the invariant, $t$. We also present the Compton form factors entering the deeply virtual Compton scattering process in the kinematic regimes for both fixed target and electron-ion collider settings.
Related Topics
- Type
- preprint
- Landing Page
- https://doi.org/10.48550/arxiv.2511.03065
- OA Status
- green
- OpenAlex ID
- https://openalex.org/W7104261192
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https://openalex.org/W7104261192Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.48550/arxiv.2511.03065Digital Object Identifier
- Title
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Updated flexible global parametrization of generalized parton distributions from elastic and deep inelastic inclusive scattering dataWork title
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preprintOpenAlex work type
- Publication year
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2025Year of publication
- Publication date
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2025-11-04Full publication date if available
- Authors
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Panjsheeri, Zaki, Adams, Douglas Q., Khawaja, Adil, Pandey, Saraswati, Tezgin, Kemal, Liuti, SimonettaList of authors in order
- Landing page
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https://doi.org/10.48550/arxiv.2511.03065Publisher landing page
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greenOpen access status per OpenAlex
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https://doi.org/10.48550/arxiv.2511.03065Direct OA link when available
- Concepts
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Parton, Physics, Particle physics, Gluon, Deep inelastic scattering, Compton scattering, Parametrization (atmospheric modeling), Quark, Quantum chromodynamics, Nucleon, Distribution function, Scattering, Recoil, Inelastic scattering, HERA, Kinematics, Quantum electrodynamics, Nuclear physics, Perturbative QCD, Momentum (technical analysis), Quark–gluon plasma, Lattice QCD, Bremsstrahlung, Eikonal equation, Elastic scattering, Sum rule in quantum mechanicsTop concepts (fields/topics) attached by OpenAlex
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