Quantum scale-invariant models as effective field theories

Autor:	Shaposhnikov, M. E., Tkachov, F. V.
Rok vydání:	2009
Předmět:	High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	We address the question of whether the quantum scale-invariant theories introduced in [1] are renormalizable or play the role of effective field theories that are valid below the Planck scale $M_P$. We show that starting from two-loop level the renormalization procedure requires introduction of counter-terms with structures different from those in the initial Lagrangian, making these theories non-renormalizable and therefore non-predictive above $M_P$. Despite non-renormalizability, the attractive features of these theories, associated with the stability of the Higgs mass agains radiative corrections and the smallness of the cosmological constant, remain intact. Comment: 5 pages, 1 figure
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0905.4857 Zobrazit plný text záznamu View this record from Arxiv