Asymptotic freedom and higher derivative gauge theories

Asorey M. (Universidad de Zaragoza) ; Falceto F. (Universidad de Zaragoza) ; Rachwal L.

Resumen: The ultraviolet completion of gauge theories by higher derivative terms can dramatically change their behavior at high energies. The requirement of asymptotic freedom imposes very stringent constraints that are only satisfied by a small family of higher derivative theories. If the number of derivatives is large enough (n > 4) the theory is strongly interacting both at extreme infrared and ultraviolet regimes whereas it remains asymptotically free for a low number of extra derivatives (n ¿ 4). In all cases the theory improves its ultraviolet behavior leading in some cases to ultraviolet finite theories with vanishing ß-function. The usual consistency problems associated to the presence of extra ghosts in higher derivative theories may not harm asymptotically free theories because in that case the effective masses of such ghosts are running to infinity in the ultraviolet limit.

Idioma: Inglés

DOI: 10.1007/JHEP05(2021)075

Año: 2021

Publicado en: Journal of High Energy Physics 2021, 75 (2021), [13 pp.]
ISSN: 1126-6708

Factor impacto JCR: 6.376 (2021)

Categ. JCR: PHYSICS, PARTICLES & FIELDS rank: 6 / 29 = 0.207 (2021) - Q1 - T1

Factor impacto CITESCORE: 10.3 - Physics and Astronomy (Q1)

Factor impacto SCIMAGO: 0.895 - Nuclear and High Energy Physics (Q2)

Financiación: info:eu-repo/grantAgreement/EUR/COST-Action/CA18108
Financiación: info:eu-repo/grantAgreement/EUR/COST/MP1405-QSPACE
Financiación: info:eu-repo/grantAgreement/ES/DGA-FSE/E21-17R
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/PGC2018-095328-B-I00

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Teórica (Dpto. Física Teórica)