URN to cite this document: urn:nbn:de:bvb:355-opus-9622
Peters, Andreas (2008) Threshold Pion-Elektroproduktion bei großen Energieüberträgen. PhD, Universität Regensburg
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Abstract (German)
Wir betrachten Pion-Elektroproduktion nahe der Threshold für im Bereich von
~GeV
unter Verwendung eines Nukleons im Anfangszustand. Die Abhängigkeit der S-Wellen Threshold Multipole
und
wird unter Verwendung von Lichtkegelsummenregeln (LCSR) im chiralen Limes berechnet. Ebenso werden Vorhersagen unter Einbezug von P-Wellenbeiträgen für den Streuquerschnitt nahe der Threshold gegeben. Anschließend werden die Ergebnisse zu
mit denen des SLAC 136 Experiments verglichen.
Translation of the abstract (English)
We consider pion electroproduction close to threshold for in the region
~GeV
on a nucleon target.
The momentum transfer dependence of the S-wave multipoles at threshold, and
, 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 in the threshold region.
| Item Type: | Thesis of the University of Regensburg (PhD) |
|---|---|
| Referee: | Prof. Dr. Vladimir M. Braun |
| Date of exam: | 15 April 2008 |
| Institutions: | Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun |
| Keywords: | Quantenchromodynamik , EMC-Effekt , Pion , Pion-Elektroproduktion , Lichtkegelsummenregeln (LCSR) , pion electroproduction , light-cone sum rules |
| Subjects: | 500 Science > 530 Physics |
| Status: | Published |
| Refereed: | Yes, this version has been refereed |
| Created at the University of Regensburg: | Yes |
| Owner: | Universitätsbibliothek Regensburg |
| Deposited On: | 27 Oct 2009 17:23 |
| Last Modified: | 21 Jul 2011 00:04 |
| Item ID: | 10731 |
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