Nucleon electromagnetic form factors in perturbative QCD

Item type:	Thesis of the University of Regensburg (PhD)
Open Access Type:	Primary Publication
Date:	28 July 2015
Referee:	Prof. Dr. Vladimir Braun
Date of exam:	14 July 2015
Institutions:	Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun
Keywords:	perturbative QCD, NLO, nucleon form factors
Dewey Decimal Classification:	500 Science > 530 Physics
Status:	Published
Refereed:	Yes, this version has been refereed
Created at the University of Regensburg:	Yes
Item ID:	32246

Abstract (English)

In this thesis we calculate αS-corrections–in perturbative quantumchromodynamics (pQCD) – to the hard scattering kernel of nucleon form factors within the collinear factorization approach. Due to the fact of dealing with a huge number of Feynman diagrams it is necessary to solve this problem computer-assisted. Therefore we make use of the computational software program Mathematica and the ...

Abstract (English)

In this thesis we calculate αS-corrections–in perturbative quantumchromodynamics (pQCD) – to the hard scattering kernel of nucleon form factors within the collinear factorization approach. Due to the fact of dealing with a huge number of Feynman diagrams it is necessary to solve this problem computer-assisted. Therefore we make use of the computational software program Mathematica and the packages FeynCalc, FeynArts and the multidimensional numerical integration Cuba. We present three highly nontrivial and independent checks for the consistency of our results.

Translation of the abstract (German)

In dieser Arbeit berechnen wir αS Korrekturen, in perturbativer QCD (QCD), zum harten Streukern der Nukleonformfaktoren in Collinearer Faktorisierung. Da wir es mit einer enormen Zahl von Feynmandiagrammen zu tun haben müssen wir uns der algebraischen Computerprogramms Mathematica und seinen Bibliotheken FeynCalc, FeynArts und dem numerischen Integrationsprogram Cuba bedienen. Wir präsentieren ...

Translation of the abstract (German)

In dieser Arbeit berechnen wir αS Korrekturen, in perturbativer QCD (QCD), zum harten Streukern der Nukleonformfaktoren in Collinearer Faktorisierung. Da wir es mit einer enormen Zahl von Feynmandiagrammen zu tun haben müssen wir uns der algebraischen Computerprogramms Mathematica und seinen Bibliotheken FeynCalc, FeynArts und dem numerischen Integrationsprogram Cuba bedienen. Wir präsentieren drei hoch nicht triviale und unabhängige Kontrollmechanismen um die Konsistenz unseres Resultats zu prüfen.

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Translation of the abstract (German)

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