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SUMMARY:EFT approach to the electron Electric Dipole Moment at the two-loo
 p level
DTSTART:20190218T140000
DTSTAMP:20260916T061457Z
UID:78079f1798a2a49e25ae7d4381392f9b886888f8f96fca7a9a84df8a
CATEGORIES:Conferences - Seminars
DESCRIPTION:Marc Riembau (Geneve U.)\nThe ACME collaboration has recently
  reported a new bound on the electric dipole moment (EDM) of the electron\
 , |d_e|<1.1×10^−29e⋅cm at 90% confidence level\, reaching an unpre
 cedented accuracy level. This can translate into new relevant constraints 
 on theories beyond the SM laying at the TeV scale\, even when they contrib
 ute to the electron EDM at the two-loop level. We use the EFT approach to 
 classify these corrections\, presenting the contributions to the anomalous
  dimension of the CP-violating dipole operators of the electron up to the 
 two-loop level. Selection rules based on helicity and CP play an important
  role to simplify this analysis. We use this result to provide new bounds 
 on BSM with leptoquarks\, extra Higgs\, or constraints in sectors of the M
 SSM and composite Higgs models. The new ACME bound pushes natural theories
  significantly more into fine-tune territory\, unless they have a way to a
 ccidentally preserve CP.
LOCATION:
STATUS:CONFIRMED
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