Scale-anomaly-induced binding pressure in hadrons
Fuente:
arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Acceso en línea: | |
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| _version_ | 1866911334172459008 |
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| author | Fujii, Daisuke Tanaka, Mitsuru |
| author_facet | Fujii, Daisuke Tanaka, Mitsuru |
| contents | The effect of the QCD scale anomaly on the internal pressure distribution of hadrons is studied based on the trace-traceless decomposition of the energy-momentum tensor. Using recent model-independent results of gravitational form factors as input, the pressure distributions of both pions and nucleons are analyzed in the instant form and the light-front form. It is found that, in all cases, the scale anomaly dominantly generates the negative binding pressure. This result suggests that the phenomenon is a universal feature, independent of models, types of hadrons, and the choice of form. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_23786 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Scale-anomaly-induced binding pressure in hadrons Fujii, Daisuke Tanaka, Mitsuru High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice High Energy Physics - Theory Nuclear Theory The effect of the QCD scale anomaly on the internal pressure distribution of hadrons is studied based on the trace-traceless decomposition of the energy-momentum tensor. Using recent model-independent results of gravitational form factors as input, the pressure distributions of both pions and nucleons are analyzed in the instant form and the light-front form. It is found that, in all cases, the scale anomaly dominantly generates the negative binding pressure. This result suggests that the phenomenon is a universal feature, independent of models, types of hadrons, and the choice of form. |
| title | Scale-anomaly-induced binding pressure in hadrons |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Lattice High Energy Physics - Theory Nuclear Theory |
| url | https://arxiv.org/abs/2507.23786 |