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Renormalization of three-quark operators for baryon distribution amplitudes
Gruber, Michael (2017) Renormalization of three-quark operators for baryon distribution amplitudes. PhD, Universität Regensburg.Date of publication of this fulltext: 13 Dec 2017 10:00
Thesis of the University of Regensburg
DOI to cite this document: 10.5283/epub.36442
Abstract (English)
In this thesis we design and study three-quark operators that are essential for the calculation of baryon distribution amplitudes. These nonperturbative objects grant insight into the internal structure of hadrons, but their renormalization patterns are nontrivial and need to be treated with care. With the application to lattice simulations in mind we discuss two renormalization schemes, MS-bar ...
In this thesis we design and study three-quark operators that are essential for the calculation of baryon distribution amplitudes. These nonperturbative objects grant insight into the internal structure of hadrons, but their renormalization patterns are nontrivial and need to be treated with care. With the application to lattice simulations in mind we discuss two renormalization schemes, MS-bar and RI'/SMOM, and connect them by calculating conversion factors. Armed with this knowledge we are able to extract phenomenologically relevant results from an accompanying lattice analysis.
Translation of the abstract (German)
In dieser Arbeit entwickeln und untersuchen wir Drei-Quark-Operatoren, die essentiell für die Berechnung von Baryon-Distributionsamplituden sind. Diese nichtperturbativen Objekte gewähren Einblick in die interne Struktur von Hadronen, aber ihre Renormierungsmuster sind nichttrivial und müssen sorgfältig behandelt werden. Bezüglich der Anwendung auf Gittersimulationen diskutieren wir zwei ...
In dieser Arbeit entwickeln und untersuchen wir Drei-Quark-Operatoren, die essentiell für die Berechnung von Baryon-Distributionsamplituden sind. Diese nichtperturbativen Objekte gewähren Einblick in die interne Struktur von Hadronen, aber ihre Renormierungsmuster sind nichttrivial und müssen sorgfältig behandelt werden. Bezüglich der Anwendung auf Gittersimulationen diskutieren wir zwei Renormierungsschemata, MS-bar und RI'/SMOM, und verbinden diese durch die Berechnung von Umrechnungsfaktoren. Mittels dieses Wissens sind wir in der Lage, phänomenologisch relevante Ergebnisse aus einer begleitenden Gitteranalyse zu extrahieren.
Involved Institutions
Details
| Item type | Thesis of the University of Regensburg (PhD) |
| Date | 13 December 2017 |
| Referee | Prof. Dr. Andreas Schäfer and Prof. Dr. Vladimir Braun |
| Date of exam | 11 December 2017 |
| Institutions | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Keywords | renormalization, three-quark operators, octet baryons, distribution amplitudes, quantum chromodynamics, perturbative QCD, lattice QCD, hadron structure, group theory, symmetries |
| Dewey Decimal Classification | 500 Science > 530 Physics |
| Status | Published |
| Refereed | Yes, this version has been refereed |
| Created at the University of Regensburg | Yes |
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-364421 |
| Item ID | 36442 |
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