- Author
-
S. Faller
T. Mannel
S. Gadatsch - Year
- 2013
- Title
- Minimal flavor violation and anomalous top decays
- Journal
- Physical Review D. Particles, Fields, Gravitation, and Cosmology
- Volume | Issue number
- 88 | 3
- Pages (from-to)
- 035006
- Number of pages
- 11
- Document type
- Article
- Faculty
- Faculty of Science (FNWI)
- Institute
- Institute for High Energy Physics (IHEF)
- Abstract
-
Top-quark physics at the LHC may open a window to physics beyond the Standard Model and even lead us to an understanding of the phenomenon of "flavor." However, current flavor data is a strong hint that no "new physics" with a generic flavor structure can be expected at the TeV scale. In turn, if there is "new physics" at the TeV scale, it must be "minimally flavor violating." This has become a widely accepted assumption for "new physics" models. In this paper we propose a model-independent scheme to test minimal flavor violation for the anomalous charged Wtq, q∈{d,s,b} and flavor-changing Vtq, q∈{u,c} and V∈{Z,γ,g} couplings within an effective field theory framework, i.e., in a model-independent way. We perform a spurion analysis of our effective field theory approach and calculate the decay rates for the anomalous top-quark decays in terms of the effective couplings for different helicities by using a two-Higgs doublet model of type II, under the assumption that the top-quark is produced at a high-energy collision and decays as a quasi-free particle.
- URL
- go to publisher's site
- Language
- English
- Persistent Identifier
- https://hdl.handle.net/11245/1.405910
- Downloads
-
Minimal flavor violation(Final published version)
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