Gravitational form factors of the proton from lattice QCD
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866913402164609024 |
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| author | Hackett, Daniel C. Pefkou, Dimitra A. Shanahan, Phiala E. |
| author_facet | Hackett, Daniel C. Pefkou, Dimitra A. Shanahan, Phiala E. |
| contents | The gravitational form factors (GFFs) of a hadron encode fundamental aspects of its structure, including its shape and size as defined from e.g., its energy density. This work presents a determination of the flavor decomposition of the GFFs of the proton from lattice QCD, in the kinematic region $0\leq -t\leq 2~\text{GeV}^2$. The decomposition into up-, down-, strange-quark, and gluon contributions provides first-principles constraints on the role of each constituent in generating key proton structure observables, such as its mechanical radius, mass radius, and $D$-term. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_08484 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Gravitational form factors of the proton from lattice QCD Hackett, Daniel C. Pefkou, Dimitra A. Shanahan, Phiala E. High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Theory The gravitational form factors (GFFs) of a hadron encode fundamental aspects of its structure, including its shape and size as defined from e.g., its energy density. This work presents a determination of the flavor decomposition of the GFFs of the proton from lattice QCD, in the kinematic region $0\leq -t\leq 2~\text{GeV}^2$. The decomposition into up-, down-, strange-quark, and gluon contributions provides first-principles constraints on the role of each constituent in generating key proton structure observables, such as its mechanical radius, mass radius, and $D$-term. |
| title | Gravitational form factors of the proton from lattice QCD |
| topic | High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2310.08484 |