Jul 5 – 12, 2017
Venice, Italy
Europe/Zurich timezone
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Standard Model Extended by a Heavy Singlet: Linear vs. Nonlinear EFT

Jul 6, 2017, 3:00 PM
Room Welles (Palazzo del Casinò)

Room Welles

Palazzo del Casinò

Parallel Talk Higgs and New Physics Higgs and new physics


Alejandro Celis (Ludwig Maximilian University)


I consider the Standard Model extended by a heavy scalar singlet and derive the low-energy effective theory resulting from integrating out the heavy state. This exercise in effective field theory serves to illustrate with a simple example the systematics of the linear and nonlinear electroweak effective Lagrangians and to clarify the relation between them. I discuss power-counting aspects and the transition between both effective theories on the basis of the model.

Primary authors

Alejandro Celis (Ludwig Maximilian University) Oscar Cata Dr Claudius Krause (IFIC Valencia) Gerhard Buchalla (LMU Munich)

Presentation materials