000151973 001__ 151973 000151973 005__ 20250321155444.0 000151973 0247_ $$2doi$$a10.1007/JHEP05(2021)075 000151973 0248_ $$2sideral$$a126618 000151973 037__ $$aART-2021-126618 000151973 041__ $$aeng 000151973 100__ $$0(orcid)0000-0003-3669-6241$$aAsorey M.$$uUniversidad de Zaragoza 000151973 245__ $$aAsymptotic freedom and higher derivative gauge theories 000151973 260__ $$c2021 000151973 5060_ $$aAccess copy available to the general public$$fUnrestricted 000151973 5203_ $$aThe 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. 000151973 536__ $$9info:eu-repo/grantAgreement/EUR/COST-Action/CA18108$$9info:eu-repo/grantAgreement/EUR/COST/MP1405-QSPACE$$9info:eu-repo/grantAgreement/ES/DGA-FSE/E21-17R$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/PGC2018-095328-B-I00 000151973 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000151973 590__ $$a6.376$$b2021 000151973 591__ $$aPHYSICS, PARTICLES & FIELDS$$b6 / 29 = 0.207$$c2021$$dQ1$$eT1 000151973 592__ $$a0.895$$b2021 000151973 593__ $$aNuclear and High Energy Physics$$c2021$$dQ2 000151973 594__ $$a10.3$$b2021 000151973 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000151973 700__ $$0(orcid)0000-0002-0882-0463$$aFalceto F.$$uUniversidad de Zaragoza 000151973 700__ $$aRachwal L. 000151973 7102_ $$12004$$2405$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Física Teórica 000151973 773__ $$g2021, 75 (2021), [13 pp.]$$pJ. high energy phys.$$tJournal of High Energy Physics$$x1126-6708 000151973 8564_ $$s318720$$uhttps://zaguan.unizar.es/record/151973/files/texto_completo.pdf$$yVersión publicada 000151973 8564_ $$s1349994$$uhttps://zaguan.unizar.es/record/151973/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000151973 909CO $$ooai:zaguan.unizar.es:151973$$particulos$$pdriver 000151973 951__ $$a2025-03-21-14:41:00 000151973 980__ $$aARTICLE