Meson distribution amplitudes - applications to weak radiative B decays and B transition form factors
| dc.creator | Jones, Gareth Warren | |
| dc.date | 2007-10-24 | |
| dc.date.accessioned | 2026-07-07T08:38:24Z | |
| dc.date.available | 2026-07-07T08:38:24Z | |
| dc.description | This thesis examines the applications and determinations of meson light-cone distribution amplitudes. The investigation of such processes, in the context of $B$ physics, provides one with a rich and extensive way of determining the Standard Model parameters of the CKM matrix, which are essential in describing CP violation, and searching for tell-tale signs of new physics beyond the Standard Model. We investigate the twist-2 and twist-3 distribution amplitudes of light vector mesons and fully examine $\rm SU(3)_F$-breaking effects and include leading G-parity violating terms. Numerical values of the leading non-perturbative hadronic parameters are determined from QCD sum rules. The distribution amplitude results find direct application in the radiative $B$ decays to light vector mesons $B \to V γ$. We examine the phenomenologically most important observables in this decay mode using the formalism of QCD factorisation. We also include long-distance photon emission and soft quark loop effects, which formally lie outside the QCD factorisation formalism. The analysis encompasses all the modes $B_{u,d} \to ρ, ω, K^*$ and $B_{s} \to ϕ, \bar{K}^*$. We also calculate the $B \to \etapb$ transition form factor using QCD sum rules on the light-cone. We include the singlet contribution originating from the $\rm U(1)_A$ anomaly and bring the calculation consistently within the $η$-$\etap$ mixing framework. | |
| dc.description | 160 pages, 52 figures. A version with high resolution figures can be found at http://www.ippp.dur.ac.uk/Research/Theses/jones.pdf | |
| dc.identifier | https://arxiv.org/abs/0710.4479 | |
| dc.identifier | http://arxiv.org/abs/0710.4479 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/140720 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Meson distribution amplitudes - applications to weak radiative B decays and B transition form factors | |
| dc.type | text |