Particle seismology: mechanical and gravitational properties from parton-hadron duality
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866914516660387840 |
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| author | Arriola, Enrique Ruiz Broniowski, Wojciech |
| author_facet | Arriola, Enrique Ruiz Broniowski, Wojciech |
| contents | The internal structure of hadrons is characterized by form factors which correspond to matrix elements of currents. Among those, the stress-energy-momentum tensor is a universally conserved quantity providing the gravitational form factors, from which mechanical properties may be derived via the response to the space-time fluctuations. They have received much attention because of their role as moments of the Generalized Parton Distributions, where the stress-energy-momentum tensor couples to two photons, and more recently, due to the explicit lattice QCD determination for the pion and nucleon. In these lectures we attempt a pedagogical review of the topic from a purely hadronic point of view, based on the notion of dispersion relations, meson dominance, and parton-hadron duality. We show that despite the overwhelming simplicity of the approach, a rather successful description of the lattice QCD data is achieved. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2604_26537 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Particle seismology: mechanical and gravitational properties from parton-hadron duality Arriola, Enrique Ruiz Broniowski, Wojciech High Energy Physics - Phenomenology High Energy Physics - Lattice Nuclear Theory The internal structure of hadrons is characterized by form factors which correspond to matrix elements of currents. Among those, the stress-energy-momentum tensor is a universally conserved quantity providing the gravitational form factors, from which mechanical properties may be derived via the response to the space-time fluctuations. They have received much attention because of their role as moments of the Generalized Parton Distributions, where the stress-energy-momentum tensor couples to two photons, and more recently, due to the explicit lattice QCD determination for the pion and nucleon. In these lectures we attempt a pedagogical review of the topic from a purely hadronic point of view, based on the notion of dispersion relations, meson dominance, and parton-hadron duality. We show that despite the overwhelming simplicity of the approach, a rather successful description of the lattice QCD data is achieved. |
| title | Particle seismology: mechanical and gravitational properties from parton-hadron duality |
| topic | High Energy Physics - Phenomenology High Energy Physics - Lattice Nuclear Theory |
| url | https://arxiv.org/abs/2604.26537 |