Two-loop coefficient functions in deeply virtual Compton scattering: flavor-singlet axial-vector and transversity case
Abstract We calculate the two-loop flavor-singlet axial-vector and gluon transversity coefficient functions for deeply virtual Compton scattering in QCD. We observe interesting properties regarding the transcendentality of the transversity coefficient function. Our results complete the calculation o...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-01-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP01(2024)053 |
| _version_ | 1797356005469716480 |
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| author | Yao Ji J. Schoenleber |
| author_facet | Yao Ji J. Schoenleber |
| author_sort | Yao Ji |
| collection | DOAJ |
| description | Abstract We calculate the two-loop flavor-singlet axial-vector and gluon transversity coefficient functions for deeply virtual Compton scattering in QCD. We observe interesting properties regarding the transcendentality of the transversity coefficient function. Our results complete the calculation of the full next-to-next-to-leading order coefficient function in deeply virtual Compton scattering. Numerically, the two-loop corrections in the axial-vector and transversity channel are comparable to their vector counterpart at moderate skewness parameter ξ and hence indispensable for analyzing the upcoming high-precision data from the Electron-Ion Collider. |
| first_indexed | 2024-03-08T14:20:26Z |
| format | Article |
| id | doaj.art-afc3f091776040c6ae3584a343730db9 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-03-08T14:20:26Z |
| publishDate | 2024-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-afc3f091776040c6ae3584a343730db92024-01-14T12:06:54ZengSpringerOpenJournal of High Energy Physics1029-84792024-01-012024112310.1007/JHEP01(2024)053Two-loop coefficient functions in deeply virtual Compton scattering: flavor-singlet axial-vector and transversity caseYao Ji0J. Schoenleber1Physik Department T31, Technische Universität MünchenInstitut für Theoretische Physik, Universität RegensburgAbstract We calculate the two-loop flavor-singlet axial-vector and gluon transversity coefficient functions for deeply virtual Compton scattering in QCD. We observe interesting properties regarding the transcendentality of the transversity coefficient function. Our results complete the calculation of the full next-to-next-to-leading order coefficient function in deeply virtual Compton scattering. Numerically, the two-loop corrections in the axial-vector and transversity channel are comparable to their vector counterpart at moderate skewness parameter ξ and hence indispensable for analyzing the upcoming high-precision data from the Electron-Ion Collider.https://doi.org/10.1007/JHEP01(2024)053Higher-Order Perturbative CalculationsSpecific QCD Phenomenology |
| spellingShingle | Yao Ji J. Schoenleber Two-loop coefficient functions in deeply virtual Compton scattering: flavor-singlet axial-vector and transversity case Journal of High Energy Physics Higher-Order Perturbative Calculations Specific QCD Phenomenology |
| title | Two-loop coefficient functions in deeply virtual Compton scattering: flavor-singlet axial-vector and transversity case |
| title_full | Two-loop coefficient functions in deeply virtual Compton scattering: flavor-singlet axial-vector and transversity case |
| title_fullStr | Two-loop coefficient functions in deeply virtual Compton scattering: flavor-singlet axial-vector and transversity case |
| title_full_unstemmed | Two-loop coefficient functions in deeply virtual Compton scattering: flavor-singlet axial-vector and transversity case |
| title_short | Two-loop coefficient functions in deeply virtual Compton scattering: flavor-singlet axial-vector and transversity case |
| title_sort | two loop coefficient functions in deeply virtual compton scattering flavor singlet axial vector and transversity case |
| topic | Higher-Order Perturbative Calculations Specific QCD Phenomenology |
| url | https://doi.org/10.1007/JHEP01(2024)053 |
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