Advanced search
Start date

Three-body heavy meson decay and CP violation

Grant number: 14/19094-8
Support type:Scholarships in Brazil - Doctorate (Direct)
Effective date (Start): March 01, 2015
Effective date (End): 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
Home 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


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)

Scientific publications (10)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
YDREFORS, E.; ALVARENGA NOGUEIRA, J. H.; KARMANOV, V. A.; FREDERICO, T. Three-boson bound states in Minkowski space with contact interactions. Physical Review D, v. 101, n. 9 MAY 26 2020. Web of Science Citations: 0.
NOGUEIRA, J. H. ALVARENGA; GHERARDI, V.; FREDERICO, T.; SALME, G.; COLASANTE, D.; PACE, E. Solving the Bethe-Salpeter equation in Minkowski space for a fermion-scalar system. Physical Review D, v. 100, n. 1 JUL 29 2019. Web of Science Citations: 0.
YDREFORS, E.; ALVARENGA NOGUEIRA, J. H.; KARMANOV, V. A.; FREDERICO, T. Solving the three-body bound-state Bethe-Salpeter equation in Minkowski space. Physics Letters B, v. 791, p. 276-280, APR 10 2019. Web of Science Citations: 2.
NOGUEIRA, J. H. ALVARENGA; YDREFORS, E.; FREDERICO, T.; SALME, G. Relativistic Studies of Few-Body Systems Using the Bethe-Salpeter Approach. FEW-BODY SYSTEMS, v. 59, n. 5 SEP 2018. Web of Science Citations: 0.
ALVARENGA NOGUEIRA, J. H.; JI, CHUENG-RYONG; YDREFORS, E.; FREDERICO, T. Color-suppression of non-planar diagrams in bosonic bound states. Physics Letters B, v. 777, p. 207-211, FEB 10 2018. Web of Science Citations: 2.
YDREFORS, E.; ALVARENGA NOGUEIRA, J. H.; GIGANTE, V.; FREDERICO, T.; KARMANOV, V. A. Three-body bound states with zero-range interaction in the Bethe-Salpeter approach. Physics Letters B, v. 770, p. 131-137, JUL 10 2017. Web of Science Citations: 3.
GIGANTE, V.; ALVARENGA NOGUEIRA, J. H.; YDREFORS, E.; GUTIERREZ, C.; KARMANOV, V. A.; FREDERICO, T. Bound state structure and electromagnetic form factor beyond the ladder approximation. Physical Review D, v. 95, n. 5 MAR 10 2017. Web of Science Citations: 8.
ALVARENGA NOGUEIRA, J. H.; FREDERICO, T.; LOURENCO, O. B+ -> K-pi(+)pi(+): Three-Body Final State Interactions and K pi Isospin States. FEW-BODY SYSTEMS, v. 58, n. 2 MAR 2017. Web of Science Citations: 2.
ALVARENGA NOGUEIRA, J. H.; BEDIAGA, I.; FREDERICO, T.; MAGALHAES, P. C.; MOLINA RODRIGUEZ, J. Suppressed B -> PV CP asymmetry: CPT constraint. Physical Review D, v. 94, n. 5 SEP 21 2016. Web of Science Citations: 5.
ALVARENGA NOGUEIRA, J. H.; BEDIAGA, I.; CAVALCANTE, A. B. R.; FREDERICO, T.; LOURENCO, O. CP violation: Dalitz interference, CPT, and final state interactions. Physical Review D, v. 92, n. 5 SEP 9 2015. Web of Science Citations: 15.

Please report errors in scientific publications list by writing to: