Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 5, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP05(2013)153
Keywords
Higgs Physics; Beyond Standard Model; Technicolor and Composite Models
Categories
Funding
- Agence Nationale de la Recherche [ANR 2010 BLANC 041301]
- EU ITN [PITN-GA-2009-237920]
- CEA-Eurotalents program
- CAPES Foundation (Ministry of Education of Brazil)
Ask authors/readers for more resources
We investigate the issue of anomalous contribution to the T parameter and to Flavor Changing Neutral Currents in models with two Higgs doublets arising as composite pseudo Nambu-Coldstone modes. The non linear Lagrangians of several models are explicitly derived and the anomalous contributions to T are identified. The breaking patterns SU(5) -> SU(4) x U(1) and SU(5) -> SU(4), are analyzed first and we show how anomalous contributions to T arise in both models. Apart front that, the embedding of the Standard Model fermions in a 10 of SU(5) avoids at the same time large corrections to the Zb (b) over bar coupling and Flavor Changing Neutral Current transitions. Finally, we propose a model based on the breaking SO(9)/SO(8) that is free from anomalous contributions to T and in which the problems of the Zb (b) over bar coupling and of Flavor Changing Neutral Currents can be simultaneously solved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available