Analysis of Tau and heavy meson hadronic decays and neutrino-nucleus interactions,...
CP violation and the matter-antimatter asymmetry in the Universe: A case study in ...
Symmetries and their breaking: Matter-Antimatter Asymmetry in the Universe
| Grant number: | 14/19094-8 |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| Start date: | March 01, 2015 |
| End date: | November 30, 2019 |
| Field of knowledge: | Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields |
| Principal Investigator: | Tobias Frederico |
| Grantee: | Jorge Henrique de Alvarenga Nogueira |
| Host Institution: | Divisão de Ciências Fundamentais (IEF). Instituto Tecnológico de Aeronáutica (ITA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil |
| Associated scholarship(s): | 17/14695-1 - Exploring the hadron structure through the Bethe-Salpeter Equation in Minkowski space, BE.EP.DD |
Abstract The PhD project aims to investigate three-body heavy meson decays and violation of Charge-Parity (CP). The heavy mesons, we will focus on heavy meson decays recent observed in the experiments of the "Large Hadron Collider" LHC, in particular the LHCb collaboration, which observed the CP violation in the decays of the conjugate B± mesons in three light ones. We intend to develop models to describe the decay of these heavy mesons in three light ones (KKK, and KKÀ ÀÀÀ), including the final state interaction in a consistent formalism with the constraint arising from the invariance of the interaction under the transformation of Charge, Parity and Time reversal (CPT). The final state interaction model will be formulated through the three-body transition matrix obtained from the inhomogeneous Bethe-Salpeter equation, combining the Faddeev decomposition and the projection in the light-front. The consistency of the formulation with the CPT will be checked. Also we aim to investigate the microscopic amplitudes, namely partonic amplitudes, where the weak phase CP violation phase from the CKM matrix is built in, and are responsible for forming the initial mesonic channels for the hadronic re-scattering process. These partonic amplitudes, corresponding to either the formation of two or three meson channels, possibly including resonances, will be formulated considering quark "loop" diagrams ("tree" and "penguin"), where the mesonic vertices come from covariant Bethe-Salpeter amplitude models, in order to parameterize the valence light-front wave functions associated with these mesons, and also we can also use the Nakanishi integral representation and models based on gauge-gravity duality. (AU) | |
| News published in Agência FAPESP Newsletter about the scholarship: | |
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