Abstract: The integration of heavy scalar fields is discussed in a class of BSM models, containing more that one representation for scalars and with mixing. The interplay between integrating out heavy scalars and the Standard Model decoupling limit is examined. In general, the latter cannot be obtained in terms of only one large scale and can only be achieved by imposing further assumptions on the couplings. Systematic low-energy expansions are derived in the more general, non-decoupling scenario, including mixed tree-loop and mixed heavy-light generated operators. The number of local operators is larger than the one usually reported in the literature.

Boggia, M., Gomez Ambrosio, R., Passarino, G. (2016). Low energy behaviour of standard model extensions. JOURNAL OF HIGH ENERGY PHYSICS, 2016(5) [10.1007/JHEP05(2016)162].

Low energy behaviour of standard model extensions

Gomez Ambrosio, R
;
2016

Abstract

Abstract: The integration of heavy scalar fields is discussed in a class of BSM models, containing more that one representation for scalars and with mixing. The interplay between integrating out heavy scalars and the Standard Model decoupling limit is examined. In general, the latter cannot be obtained in terms of only one large scale and can only be achieved by imposing further assumptions on the couplings. Systematic low-energy expansions are derived in the more general, non-decoupling scenario, including mixed tree-loop and mixed heavy-light generated operators. The number of local operators is larger than the one usually reported in the literature.
Articolo in rivista - Articolo scientifico
Beyond Standard Model; Effective field theories; Nonperturbative Effects; Renormalization Regularization and Renormalons;
English
2016
2016
5
162
open
Boggia, M., Gomez Ambrosio, R., Passarino, G. (2016). Low energy behaviour of standard model extensions. JOURNAL OF HIGH ENERGY PHYSICS, 2016(5) [10.1007/JHEP05(2016)162].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/393279
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