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Dokumentenart: | Artikel |
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Titel eines Journals oder einer Zeitschrift: | Physics Letters B |
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Verlag: | ELSEVIER SCIENCE BV |
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Ort der Veröffentlichung: | AMSTERDAM |
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Band: | 634 |
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Nummer des Zeitschriftenheftes oder des Kapitels: | 2-3 |
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Seitenbereich: | S. 227-234 |
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Datum: | 2006 |
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Institutionen: | Physik > Institut für Theoretische Physik |
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Identifikationsnummer: | Wert | Typ |
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10.1016/j.physletb.2006.01.036 | DOI |
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Stichwörter / Keywords: | ANALYTIC CONTINUATION; PARTON DISTRIBUTIONS; EXCLUSIVE PROCESSES; WAVE-FUNCTIONS; FORM-FACTOR; LIGHT-CONE; QCD; EXPANSION; EVOLUTION; FACTORIZATION; perturbative corrections; deeply virtual compton scattering; conformal symmetry |
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Dewey-Dezimal-Klassifikation: | 500 Naturwissenschaften und Mathematik > 530 Physik |
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Status: | Veröffentlicht |
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Begutachtet: | Ja, diese Version wurde begutachtet |
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An der Universität Regensburg entstanden: | Ja |
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Dokumenten-ID: | 70106 |
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Zusammenfassung
We study perturbative QCD corrections to deeply virtual Compton scattering on an unpolarized nucleon target in the flavor non-singlet sector to next-to-next-to-leading order accuracy, restricting ourselves to the kinematically dominant amplitude. The difference between the standard minimal subtraction and the conformal scheme, in which conformal symmetry is manifest, is studied to next-to-leading ...
Zusammenfassung
We study perturbative QCD corrections to deeply virtual Compton scattering on an unpolarized nucleon target in the flavor non-singlet sector to next-to-next-to-leading order accuracy, restricting ourselves to the kinematically dominant amplitude. The difference between the standard minimal subtraction and the conformal scheme, in which conformal symmetry is manifest, is studied to next-to-leading order. Beyond this order we employ conformal symmetry for the evaluation of perturbative corrections. Within a certain class of generalized parton distributions we find moderate radiative corrections. (c) 2006 Elsevier B.V. All rights reserved.