Quark and gluon tomography of the helium-4 nucleus
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866911694480998400 |
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| author | Martínez-Fernández, V. Pire, B. Sznajder, P. Wagner, J. |
| author_facet | Martínez-Fernández, V. Pire, B. Sznajder, P. Wagner, J. |
| contents | QCD collinear factorization allows coherent hard exclusive reactions to reveal the quark-gluon structure of light nuclei, enabling their 3D tomography. We study elastic form factors and deeply virtual Compton scattering on a helium-4 target, achieving theoretical precision unprecedented even in proton studies. Constraining generalized parton distributions at next-to-leading order in $α_s$, incorporating kinematic twist corrections, and using full evolution equations, we provide the first tomography of a light nucleus, revealing distinct transverse spatial distributions of quarks and gluons. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_18519 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Quark and gluon tomography of the helium-4 nucleus Martínez-Fernández, V. Pire, B. Sznajder, P. Wagner, J. High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory QCD collinear factorization allows coherent hard exclusive reactions to reveal the quark-gluon structure of light nuclei, enabling their 3D tomography. We study elastic form factors and deeply virtual Compton scattering on a helium-4 target, achieving theoretical precision unprecedented even in proton studies. Constraining generalized parton distributions at next-to-leading order in $α_s$, incorporating kinematic twist corrections, and using full evolution equations, we provide the first tomography of a light nucleus, revealing distinct transverse spatial distributions of quarks and gluons. |
| title | Quark and gluon tomography of the helium-4 nucleus |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2605.18519 |