Nucleon Gravitational Form Factors
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arXiv
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| Hauptverfasser: | , , , , , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866929532925116416 |
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| author | Yao, Z. -Q. Xu, Y. -Z. Binosi, D. Cui, Z. -F. Ding, M. Raya, K. Roberts, C. D. Rodríguez-Quintero, J. Schmidt, S. M. |
| author_facet | Yao, Z. -Q. Xu, Y. -Z. Binosi, D. Cui, Z. -F. Ding, M. Raya, K. Roberts, C. D. Rodríguez-Quintero, J. Schmidt, S. M. |
| contents | A symmetry-preserving analysis of strong interaction quantum field equations is used to complete a unified treatment of pion, kaon, nucleon electromagnetic and gravitational form factors. Findings include a demonstration that the pion near-core pressure is roughly twice that in the proton, so both are significantly greater than that of a neutron star; parton species separations of the nucleon's three gravitational form factors, in which, inter alia, the glue-to-quark ratio for each form factor is seen to take the same constant value, independent of momentum transfer; and a determination of proton radii orderings, with the mechanical (normal force) radius being less than the mass-energy radius, which is less than the proton charge radius. This body of predictions should prove useful in an era of anticipated experiments that will enable them to be tested. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_15547 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nucleon Gravitational Form Factors Yao, Z. -Q. Xu, Y. -Z. Binosi, D. Cui, Z. -F. Ding, M. Raya, K. Roberts, C. D. Rodríguez-Quintero, J. Schmidt, S. M. High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice Nuclear Experiment Nuclear Theory A symmetry-preserving analysis of strong interaction quantum field equations is used to complete a unified treatment of pion, kaon, nucleon electromagnetic and gravitational form factors. Findings include a demonstration that the pion near-core pressure is roughly twice that in the proton, so both are significantly greater than that of a neutron star; parton species separations of the nucleon's three gravitational form factors, in which, inter alia, the glue-to-quark ratio for each form factor is seen to take the same constant value, independent of momentum transfer; and a determination of proton radii orderings, with the mechanical (normal force) radius being less than the mass-energy radius, which is less than the proton charge radius. This body of predictions should prove useful in an era of anticipated experiments that will enable them to be tested. |
| title | Nucleon Gravitational Form Factors |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2409.15547 |