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Threshold pion electroproduction at large momentum transfers
Braun, Vladimir M., Ivanov, Dmitri und Peters, Andreas (2008) Threshold pion electroproduction at large momentum transfers. Physical Review D 77 (3), 034016.Veröffentlichungsdatum dieses Volltextes: 15 Mrz 2010 13:25
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.13556
Zusammenfassung
We consider pion electroproduction close to threshold for Q(2) in the region 1-10 GeV(2) on a nucleon target. The momentum transfer dependence of the S-wave multipoles at threshold, E(0+) and L(0+), is calculated in the chiral limit using light-cone sum rules. Predictions for the cross sections in the threshold region are given taking into account P-wave contributions that, as we argue, are model ...
We consider pion electroproduction close to threshold for Q(2) in the region 1-10 GeV(2) on a nucleon target. The momentum transfer dependence of the S-wave multipoles at threshold, E(0+) and L(0+), is calculated in the chiral limit using light-cone sum rules. Predictions for the cross sections in the threshold region are given taking into account P-wave contributions that, as we argue, are model independent to a large extent. The results are compared with the SLAC E136 data on the structure function F(2)(W,Q(2)) in the threshold region.
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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: | 77 | ||||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 3 | ||||||
| Seitenbereich: | 034016 | ||||||
| Datum | 21 Februar 2008 | ||||||
| Institutionen | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Braun > Arbeitsgruppe Vladimir Braun | ||||||
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| Klassifikation |
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| Stichwörter / Keywords | ELECTROMAGNETIC FORM-FACTORS; QUANTUM CHROMODYNAMICS; EXCLUSIVE PROCESSES; NUCLEON; PROTON; PHOTOPRODUCTION; QUARK; MODEL; PI-0; 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-135563 | ||||||
| Dokumenten-ID | 13556 |
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