151973 20251017144618.0 doi 10.1007/JHEP05(2021)075 sideral 126618 ART-2021-126618 eng Asorey M. Universidad de Zaragoza (orcid)0000-0003-3669-6241 Asymptotic freedom and higher derivative gauge theories 2021 Access copy available to the general public Unrestricted 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. info:eu-repo/grantAgreement/EUR/COST-Action/CA18108 info:eu-repo/grantAgreement/EUR/COST/MP1405-QSPACE info:eu-repo/grantAgreement/ES/DGA-FSE/E21-17R info:eu-repo/grantAgreement/ES/MINECO-FEDER/PGC2018-095328-B-I00 info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 6.376 2021 PHYSICS, PARTICLES & FIELDS 6 / 29 = 0.207 2021 Q1 T1 0.895 2021 Nuclear and High Energy Physics 2021 Q2 10.3 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Falceto F. Universidad de Zaragoza (orcid)0000-0002-0882-0463 Rachwal L. 2004 405 Universidad de Zaragoza Dpto. Física Teórica Área Física Teórica 2021, 75 (2021), [13 pp.] J. high energy phys. Journal of High Energy Physics 1126-6708 318720 http://zaguan.unizar.es/record/151973/files/texto_completo.pdf Versión publicada 1349994 http://zaguan.unizar.es/record/151973/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:151973 articulos driver 2025-10-17-14:20:46 ARTICLE