Müller, D. (1999) Scheme dependence of NLO corrections to exclusive processes. PHYSICAL REVIEW D, 59 (11): 116003. ISSN 1550-7998, 1550-2368
Full text not available from this repository.Abstract
We apply the so-called conformal subtraction scheme to predict perturbatively exclusive processes beyond leading order. Taking into account evolution effects, we study the scheme dependence for the photon-to-pion transition form factor and the electromagnetic pion form factor at next-to-leading order for different pion distribution amplitudes. Relying on the conformally covariant operator product expansion and using the known higher order results for polarized deep inelastic scattering, we are able to predict perturbative corrections to the hard-scattering amplitude of the photon-to-pion transition form factor beyond next-to-leading order in the conformal scheme restricted to the conformal limit of the theory. [S0556-2821(99)04809-2].
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSITION FORM-FACTOR; DEEP-INELASTIC-SCATTERING; PERTURBATIVE QUANTUM CHROMODYNAMICS; ORDER QCD CORRECTIONS; TO-LEADING ORDER; SUM-RULES; DISTRIBUTION AMPLITUDE; FIELD-THEORIES; FEYNMAN-GAUGE; EVOLUTION |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Feb 2023 06:31 |
| Last Modified: | 09 Feb 2023 06:31 |
| URI: | https://pred.uni-regensburg.de/id/eprint/49226 |
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