E-Dissertationen: Browsing E-Dissertationen by Author "Hanhart, Christoph"
Now showing items 1-10 of 10
-
Dispersive analyses of three-body decays and scattering reactions
Stamen, Dominik (2025-01-22)More than half a century after the discovery of quantum chromodynamics as the quantum-field-theoretical description of the strong interaction, its non-perturbative nature in the low-energy regime still poses a unique ... -
Dispersive analysis of charmed meson decays
Niecknig, Franz (2016-08-09)The Standard Model comprises most of today's knowledge of particle physics and is overall well tested and understood. However the dynamics of strong interactions, given by Quantum Chromodynamics (QCD), are still a challenge ... -
Dispersively improved vector-meson-dominance approaches to precision observables
Zanke, Marvin (2024-07-29)To this day, describing the interaction of hadrons poses a challenge. Although quantum chromodynamics is well established by now, its non-perturbative nature at low energies renders it impossible to perform perturbative ... -
Elastic and Inelastic Pion Reactions on Few Nucleon Systems
Lensky, Vadim (2007)In the present work, we are studying elastic and inelastic pion reactions on few-body systems within the framework of chiral effective theory. We consider two specific reactions involving pions on few-nucleon systems, ... -
Final-state interactions in heavy-meson decays
Niecknig, Johanna (2018-08-15)In the last decade the investigation of the heavy-meson sector has gained in importance, in particular for precision tests of the Standard Model and exploration of the physics beyond, such as CP violation. Experimentally, ... -
A formalism for a consistent treatment of two-pion interactions in heavy meson decays
Ropertz, Stefan (2020-10-14)The best-established theory of particle physics up to now is the Standard Model. The theory of strong interactions called quantum chromodynamics (QCD) is a part of it. QCD leads to a wide range of phenomena, which still ... -
Hyperon Spectrum in a dynamical coupled-channel approach
Rawat, Shivam (2025-01-20)In this study, we investigate the $bar{K}N$ reactions using a coupled-channels approach, covering the range of center of mass energies from the $bar{K}N$ threshold up to 2 GeV. We develop a dynamical coupled-channel model ... -
The Quest for the η and η' Transition Form Factors: A Stroll on the Precision Frontier
Holz, Simon (2022-10-04)An important precision test of the Standard Model of Particle Physics is posed by the prediction of the anomalous magentic moment of the muon. Currently, a deviation of about 4.2<em>σ</em> persists between the experimental ... -
Towards a systematic study of {D1,D2}-{D,D*} scattering and exotic vector states
von Detten, Leon Alexander (2024-07-18)As one of the four known fundamental forces in nature, the strong interaction is crucial for the formation of matter. Established in the early 1970s, the underlying field theory of quantum chromodynamics is embedded in our ... -
Two-pion exchange contributions for coupled-channel B(*)B(*) and B(*) B(*) scattering
Chacko, Jabez Tom (2024-07-26)In the paper [Phys.Rev.D 99 (2019) 9, 094013] of V. Baru et al., the LO and incomplete NLO potentials were utilised to investigate the line shapes of Zb(10610) and Zb(10650) and their (yet to be discovered) spin partners. ...