Schoenleber, Jakob (2023) Resummation of threshold logarithms in deeply-virtual Compton scattering. JOURNAL OF HIGH ENERGY PHYSICS (2): 207. ISSN 1029-8479
Full text not available from this repository. (Request a copy)Abstract
I derive an all-order resummation formula for the logarithmically enhanced contributions proportional to alpha(n)( s)/ x +/-xi log( xi +/- x/ 2 xi )(k) in the quark coefficient function of deeply virtual-Compton scattering and the pion-photon transition form factor in momentum space. The resummation is performed at the next-to-next-to-leading logarithmic accuracy. The key observation is that the quark coefficient function itself factorizes in the x -> +/- xi limit, which allows for a resummation using renormalization group equations. A preliminary numerical analysis suggests that the corrections due to resummation for the quark contribution might be small.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RENORMALIZATION; Factorization; Renormalization Group; Resummation; Specific QCD Phenomenology |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Mar 2024 09:08 |
| Last Modified: | 05 Mar 2024 09:08 |
| URI: | https://pred.uni-regensburg.de/id/eprint/59279 |
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