Renormalization of vector fields with mass-like coupling in curved spacetime

Autor:	C. Garcia-Recio, L. L. Salcedo
Jazyk:	angličtina
Rok vydání:	2019
Předmět:	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Zdroj:	European Physical Journal C: Particles and Fields, Vol 79, Iss 5, Pp 1-15 (2019)
Druh dokumentu:	article
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-019-6930-1
Popis:	Abstract Using the method of covariant symbols we compute the divergent part of the effective action of the Proca field with non-minimal mass term. Specifically a quantum abelian vector field with a non-derivative coupling to an external tensor field in curved spacetime in four dimensions is considered. Relatively explicit expressions are obtained which are manifestly local but non polynomial in the external fields. Our result is shown to reproduce existing ones in all particular cases considered. Internal consistency with Weyl invariance is also verified.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/897b970288f048df8d71946c7cf818e9 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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