24-26 May 2017
Cinvestav-Zacatenco
Mexico/General timezone
- proig@fis.cinvestav.mx
Support
Contribution
Chiral two-Higgs doublet models and flavor-changing neutral currents at tree level
Speakers
- Mr. Santiago DOMÍNGUEZ
Primary authors
- Mr. Santiago DOMÍNGUEZ (IFUNAM)
Co-authors
- Dr. Jaime BESPROSVANY (Instituto de Física)
Abstract
We know that there are no flavor-changing neutral currents in the standard model at tree level. However, within two-Higgs doublet model extensions, these currents are generated, so mechanisms must be included that avoid them. Proposed mechanisms as discrete symmetries or mass-matrix proportionality assumptions are artificial and forced. Here we consider chiral-scalar doublet models, and show these avoid such currents at tree level. Further justification for chiral models derives from the facts that a projection reproduces the standard model, and that they are predicted within the (7+1)-dimensional spin-extended model.