Abstract
Mass corrections and decay constants for light mesons have been calculated in Partially Quenched Chiral Perturbation Theory.
The calculations of the charged meson masses have been performed to third order, first for degenerate quark masses, and then, in a second project, for the general case. Another calculation also shows that a resummation of unphysical double poles in the neutral propagators of the partially quenched theory allows for the determination of the low-energy constants needed to determine the physical eta mass.
Finally, electromagnetic corrections are included into the theory as dynamical fields and their effects on the masses and decay constants of the charged mesons have been calculated to second order. Some consequences concerning the fitting of these results to Lattice QCD simulations are also considered.
The calculations of the charged meson masses have been performed to third order, first for degenerate quark masses, and then, in a second project, for the general case. Another calculation also shows that a resummation of unphysical double poles in the neutral propagators of the partially quenched theory allows for the determination of the low-energy constants needed to determine the physical eta mass.
Finally, electromagnetic corrections are included into the theory as dynamical fields and their effects on the masses and decay constants of the charged mesons have been calculated to second order. Some consequences concerning the fitting of these results to Lattice QCD simulations are also considered.
| Original language | English |
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| Qualification | Doctor |
| Awarding Institution |
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| Supervisors/Advisors |
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| Award date | 2006 Dec 19 |
| ISBN (Print) | 91-628-7012-2 |
| Publication status | Published - 2006 |
Bibliographical note
Defence detailsDate: 2006-12-19
Time: 10:15
Place: Lecture hall F, Fysicum, Sölvegatan 14A, Lunds Tekniska Högskola
External reviewer(s)
Name: Golterman, Maarten
Title: Professor
Affiliation: San Francisco State University, USA
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The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
Subject classification (UKÄ)
- Physical Sciences
Free keywords
- statistical physics
- gravitation
- relativity
- quantum mechanics
- classical mechanics
- Mathematical and general theoretical physics
- Fysik
- Chiral Perturbation Theory
- masses
- decay constants
- Physics
- electromagnetic interactions
- Strong interactions
- pseudoscalar mesons
- thermodynamics
- Matematisk och allmän teoretisk fysik
- klassisk mekanik
- kvantmekanik
- relativitet
- statistisk fysik
- termodynamik