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Improved hadronic measurements and spectral sums on the lattice

URN to cite this document:
urn:nbn:de:bvb:355-opus-10356
Hagen, Christian
Date of publication of this fulltext: 04 Aug 2008 16:29


Abstract (English)

In this thesis we address several topics of lattice QCD. As a first project we perform calculations of ground and excited states of light mesons. Especially the extraction of the excited states turns out be very difficult. Therefore we utilize the variational method, which requires the construction of a rich basis of different interpolating fields, i.e., lattice discretized operators which have ...

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Translation of the abstract (German)

In dieser Arbeit behandeln wir mehrere Themen der Gitter QCD. Als ein erstes Projekt führen wir Berechnungen von Grund- und angeregten Mesonzuständen durch. Insbesondere die Extraktion von angeregten Zuständen gestaltet sich sehr schwierig. Deshalb verwenden wir die Variationsmethode, welche es jedoch erforderlich macht, eine reichhaltige Basis von verschiedenen Interpolatoren, also ...

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