Ji, Yao and Schoenleber, Jakob (2024) Two-loop coefficient functions in deeply virtual Compton scattering: flavor-singlet axial-vector and transversity case. JOURNAL OF HIGH ENERGY PHYSICS (1): 53. ISSN 1029-8479,
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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 xi and hence indispensable for analyzing the upcoming high-precision data from the Electron-Ion Collider.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EVOLUTION KERNELS; PARTON; Higher-Order Perturbative Calculations; Specific QCD Phenomenology |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Aug 2025 09:11 |
| Last Modified: | 26 Aug 2025 09:11 |
| URI: | https://pred.uni-regensburg.de/id/eprint/63997 |
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