On the effective action for scalars in a general manifold to any loop order

Autor:	Alonso, Rodrigo, West, Mia
Rok vydání:	2022
Předmět:	High Energy Physics - Theory High Energy Physics - Phenomenology
Zdroj:	Phys.Lett.B 841 (2023) 137937
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physletb.2023.137937
Popis:	Functional methods and a derivative expansion are employed for laying out a procedure to compute the effective action to any loop order, for scalar fields parametrising an arbitrary Riemannian manifold, while maintaining explicit field-space covariance. In this process, the geometric generalization of the LSZ reduction formula is presented. These results are of use in the characterization of effective field theories for electroweak symmetry breaking and extend a geometric perspective in field space beyond one loop. Comment: 14 pages, 1 figure. Updated to Journal Version and minor change in introduction to update terminology
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2207.02050 Zobrazit plný text záznamu View this record from Arxiv