The gravitational form factor of the pion and proton and the conformal anomaly*
We analyze the hard scattering amplitude of gravitational form factors (GFFs) of hadrons within QCD factorization at large momentum transfers, focusing on their conformal field theory (CFT) description. These form factors are key to studying quark and gluon angular momentum in hadrons, connected to...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2024-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2024/24/epjconf_qcd@work2024_00030.pdf |
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| _version_ | 1846125795073851392 |
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| author | Corianò Claudio Lionetti Stefano Melle Dario Tommasi Riccardo |
| author_facet | Corianò Claudio Lionetti Stefano Melle Dario Tommasi Riccardo |
| author_sort | Corianò Claudio |
| collection | DOAJ |
| description | We analyze the hard scattering amplitude of gravitational form factors (GFFs) of hadrons within QCD factorization at large momentum transfers, focusing on their conformal field theory (CFT) description. These form factors are key to studying quark and gluon angular momentum in hadrons, connected to Mellin moments of Deeply Virtual Compton Scattering (DVCS). The analysis uses diffeomorphism invariance and conformal symmetry in momentum space. A non-Abelian TJJ 3-point function at O(αs2) reveals a dilaton interaction in the t-channel. We present a parameterization relevant for future DVCS/GFF experiments at the Electron-Ion Collider (EIC). |
| format | Article |
| id | doaj-art-ddaf5eae9a3f4b08aee64caa84c25cf2 |
| institution | Kabale University |
| issn | 2100-014X |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-ddaf5eae9a3f4b08aee64caa84c25cf22024-12-13T10:02:02ZengEDP SciencesEPJ Web of Conferences2100-014X2024-01-013140003010.1051/epjconf/202431400030epjconf_qcd@work2024_00030The gravitational form factor of the pion and proton and the conformal anomaly*Corianò Claudio0Lionetti Stefano1Melle Dario2Tommasi Riccardo3Dipartimento di Matematica e Fisica, Università del Salento and INFN Sezione di LecceDipartimento di Matematica e Fisica, Università del Salento and INFN Sezione di LecceDipartimento di Matematica e Fisica, Università del Salento and INFN Sezione di LecceDipartimento di Matematica e Fisica, Università del Salento and INFN Sezione di LecceWe analyze the hard scattering amplitude of gravitational form factors (GFFs) of hadrons within QCD factorization at large momentum transfers, focusing on their conformal field theory (CFT) description. These form factors are key to studying quark and gluon angular momentum in hadrons, connected to Mellin moments of Deeply Virtual Compton Scattering (DVCS). The analysis uses diffeomorphism invariance and conformal symmetry in momentum space. A non-Abelian TJJ 3-point function at O(αs2) reveals a dilaton interaction in the t-channel. We present a parameterization relevant for future DVCS/GFF experiments at the Electron-Ion Collider (EIC).https://www.epj-conferences.org/articles/epjconf/pdf/2024/24/epjconf_qcd@work2024_00030.pdf |
| spellingShingle | Corianò Claudio Lionetti Stefano Melle Dario Tommasi Riccardo The gravitational form factor of the pion and proton and the conformal anomaly* EPJ Web of Conferences |
| title | The gravitational form factor of the pion and proton and the conformal anomaly* |
| title_full | The gravitational form factor of the pion and proton and the conformal anomaly* |
| title_fullStr | The gravitational form factor of the pion and proton and the conformal anomaly* |
| title_full_unstemmed | The gravitational form factor of the pion and proton and the conformal anomaly* |
| title_short | The gravitational form factor of the pion and proton and the conformal anomaly* |
| title_sort | gravitational form factor of the pion and proton and the conformal anomaly |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2024/24/epjconf_qcd@work2024_00030.pdf |
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