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SUMMARY:Renormalization of the SMEFT to dimension eight: Fermionic interac
 tions
DTSTART;VALUE=DATE-TIME:20241119T163000Z
DTEND;VALUE=DATE-TIME:20241119T164500Z
DTSTAMP;VALUE=DATE-TIME:20260427T124536Z
UID:indico-contribution-25286@indico.ific.uv.es
DESCRIPTION:Speakers: Fuensanta Vilches Bravo (Departamento de Física Te
 órica y del Cosmos\, Universidad de Granada)\nThe Standard Model Effectiv
 e Field Theory (SMEFT) provides a systematic way to incorporate potential 
 new physics effects and is therefore instrumental in testing the validity 
 of the SM. To this end\, a major challenge lies in achieving greater preci
 sion in SMEFT calculations\, which includes the computation of observables
  to O(1/Λ²) (dimension-six) at one-loop and to O(1/Λ⁴) (dimension-eig
 ht) at tree level. Furthermore\, for consistency as well as for testing th
 e SMEFT against data obtained at very different scales\, the dimension-eig
 ht SMEFT should be renormalized to the one-loop level. This work contribut
 es to this endeavour by computing two-fermion renormalization group equati
 ons (RGEs) induced by pairs of dimension-six terms. Our approach relies on
  off-shell diagrammatic techniques\, for which we build a new basis of dim
 ension-eight Green’s functions with two-fermions and two or more Higgs f
 ields. We apply diagrammatic on-shell matching to minimize redundant inter
 actions\, relying on the equivalence of the S-matrices computed within the
  redundant and non-redundant Lagrangians.\n\nhttps://indico.ific.uv.es/eve
 nt/7664/contributions/25286/
LOCATION:
URL:https://indico.ific.uv.es/event/7664/contributions/25286/
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