Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5494410 | Nuclear Physics B | 2017 | 25 Pages |
Abstract
We consider the Standard Model extended by a heavy scalar singlet in different regions of parameter space and construct the appropriate low-energy effective field theories up to first nontrivial order. This top-down exercise in effective field theory is meant primarily to illustrate with a simple example the systematics of the linear and nonlinear electroweak effective Lagrangians and to clarify the relation between them. We discuss power-counting aspects and the transition between both effective theories on the basis of the model, confirming in all cases the rules and procedures derived in previous works from a bottom-up approach.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
G. Buchalla, O. Catà , A. Celis, C. Krause,