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SUMMARY:The electron-EDM in the decoupling limit of the aligned 2HDM
DTSTART;VALUE=DATE-TIME:20241120T091500Z
DTEND;VALUE=DATE-TIME:20241120T093000Z
DTSTAMP;VALUE=DATE-TIME:20260421T165124Z
UID:indico-contribution-25294@indico.ific.uv.es
DESCRIPTION:Speakers: Juan Manuel Dávila Illán (Universitat de València
  - IFIC)\nWe discuss model-independent contributions to the electron-EDM\,
  focusing on those\ncontributions emerging from a heavy scalar sector line
 arly realized. To provide a concrete new physics realization\, we investig
 ate the aligned 2HDM in the decoupling limit. We point out that logarithmi
 cally enhanced contributions generated from Barr-Zee diagrams with a fermi
 on loop are present in the aligned 2HDM\, an effect encoded in the decoupl
 ing limit by effective operators of dimension-6\, through the mixing of fo
 ur-fermion into dipole operators. The same large logarithms are absent in 
 alternative 2HDMs where a Z2 symmetry is enforced\, which thus controls th
 e basis of effective operators relevant for calculating new physics contri
 butions to EDMs. In the aligned 2HDM these contributions are proportional 
 to sources of CP violation that are potentially large\, which are absent i
 n presence of the Z2 symmetry. We also discuss the role of non-dipole cont
 act interactions in setting phenomenological constraints on the allowed am
 ount of CP violation.\n\nhttps://indico.ific.uv.es/event/7664/contribution
 s/25294/
LOCATION:
URL:https://indico.ific.uv.es/event/7664/contributions/25294/
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