Field redefinitions in effective theories at higher orders
Metadata
Show full item recordEditorial
Springer Nature
Materia
Effective Field Theories Beyond Standard Model
Date
2019-03-07Referencia bibliográfica
Criado, J. C., & Perez-Victoria, M. (2019). Field redefinitions in effective theories at higher orders. Journal of High Energy Physics, 2019(3), 38.
Sponsorship
Our work has been supported by the Spanish MINECO project FPA2016-78220-C3-1-P (Fondos FEDER) and the Junta de Andalucía grant FQM101. The work of J.C.C. has also been supported by the Spanish MECD grant FPU14.Abstract
The invariance of physical observables under redefinitions of the quantum fields
is a well-known and important property of quantum field theory. We study perturbative field redefinitions in effective theories, paying special attention to higher-order effects and
their impact on matching to an ultraviolet theory at the classical and quantum levels.