Göckeler, M. ; Horsley, R. ; Perlt, H. ; Rakow, P.E.L. ; Schäfer, A. ; Schierholz, G. ; Schiller, A.
Alternative Links zum Volltext:DOIVerlag
| Dokumentenart: | Artikel |
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| Titel eines Journals oder einer Zeitschrift: | Nuclear Physics B |
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| Verlag: | ELSEVIER SCIENCE BV |
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| Ort der Veröffentlichung: | AMSTERDAM |
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| Band: | 717 |
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| Nummer des Zeitschriftenheftes oder des Kapitels: | 1-2 |
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| Seitenbereich: | S. 304-323 |
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| Datum: | 2005 |
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| Institutionen: | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Schäfer > Arbeitsgruppe Andreas Schäfer |
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| Identifikationsnummer: | | Wert | Typ |
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| 10.1016/j.nuclphysb.2005.04.005 | DOI |
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| Stichwörter / Keywords: | VIRTUAL COMPTON-SCATTERING; ONE-LOOP RENORMALIZATION; EXCLUSIVE ELECTROPRODUCTION; QUANTUM CHROMODYNAMICS; FORM-FACTOR; MESONS; QCD; DECOMPOSITION; ASYMMETRY; INTEGRALS; lattice QCD; perturbation theory; renormalisation; generalised parton distributions |
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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: | 70664 |
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Zusammenfassung
We calculate the non-forward quark matrix elements of operators with two covariant derivatives needed for the renormalisation of the second moment of generalised parton distributions in one-loop lattice perturbation theory using Wilson fermions. For some representations of the hypercubic group commonly used in simulations we determine the sets of all possible mixing operators. For those ...
Zusammenfassung
We calculate the non-forward quark matrix elements of operators with two covariant derivatives needed for the renormalisation of the second moment of generalised parton distributions in one-loop lattice perturbation theory using Wilson fermions. For some representations of the hypercubic group commonly used in simulations we determine the sets of all possible mixing operators. For those representations the one-loop mixing matrices of renormalisation factors are found. Due to non-vanishing contributions of operators with external ordinary derivatives the number of contributing operators increases compared to forward matrix elements. (c) 2005 Elsevier B.V. All rights reserved.
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