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Deep inelastic pion electroproduction at threshold
Braun, Vladimir M., Ivanov, Dmitri Yu.
, Lenz, Alexander
und Peters, Andreas
(2007)
Deep inelastic pion electroproduction at threshold.
Physical Review D 75 (1), 014021.
Veröffentlichungsdatum dieses Volltextes: 22 Mrz 2010 12:59
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.13733
Zusammenfassung
We consider the cross section of the deep inelastic pion electroproduction on a proton target at threshold for Q(2) in the region 5-10 GeV(2). The corresponding amplitudes are described in terms of two form factors which we calculate using light-cone sum rules to leading order in QCD and including higher twist corrections. Our results suggest a considerable change from a small Q(2) region that ...
We consider the cross section of the deep inelastic pion electroproduction on a proton target at threshold for Q(2) in the region 5-10 GeV(2). The corresponding amplitudes are described in terms of two form factors which we calculate using light-cone sum rules to leading order in QCD and including higher twist corrections. Our results suggest a considerable change from a small Q(2) region that can be treated in the soft-pion limit using current algebra. In particular, we obtain a pi(0) to pi(+) production ratio of order 1/3 and significant nucleon helicity-flip contributions.
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| Dokumentenart | Artikel | ||||||
| Titel eines Journals oder einer Zeitschrift | Physical Review D | ||||||
| Verlag: | AMER PHYSICAL SOC | ||||||
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| Ort der Veröffentlichung: | COLLEGE PK | ||||||
| Band: | 75 | ||||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 1 | ||||||
| Seitenbereich: | 014021 | ||||||
| Datum | 25 Januar 2007 | ||||||
| Institutionen | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Braun | ||||||
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| Klassifikation |
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| Stichwörter / Keywords | GENERALIZED PARTON DISTRIBUTIONS; HADRONIC FORM-FACTORS; CONE SUM-RULES; QUANTUM CHROMODYNAMICS; EXCLUSIVE PROCESSES; ASYMPTOTIC-BEHAVIOR; COMPTON-SCATTERING; WAVE-FUNCTIONS; NUCLEON; QCD; | ||||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||||
| Status | Veröffentlicht | ||||||
| Begutachtet | Unbekannt / Keine Angabe | ||||||
| An der Universität Regensburg entstanden | Unbekannt / Keine Angabe | ||||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-137336 | ||||||
| Dokumenten-ID | 13733 |
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