Brane-to-Brane Mediation of SUSY Breaking in 5D SUGRA

1
Brane-to-Brane Mediation of SUSY Breaking in 5D
SUGRA

• Ian-Woo Kim
• KAIST

Work in progress
KIAS-YITP Workshop, Sep. 21, 2005
2

• Observation suggests SUSY is insensitive to
  flavor-violating UV dynamics.
• To avoid SUSY flavor problem, we consider
  sequestered scenarios in which direct Kahler
  contact term is absent at tree level.
• Geometrical separation of hidden sector and
  visible sector in extra dimension is popular
  realization of sequestering.
• Generically, KK modes of bulk fields can generate
  Kahler contact term in EFT below M

KK
3

• In 5D brane-to-brane mediation scenario with
  various bulk fields in flat and AdS background,
  we calculate tree-level Kahler contact terms and
  investigate its implication.

Vector multiplet
Q, Q
Gravity multiplet
Z, Z
Hypermultiplet
AdS or Flat geometry
4

• We calculate Kahler contact term by matching
  current-current interaction.

Result in 5D flat and AdS geometry

• Integrating out KK modes of Gravity multiplet and
  hypermultiplet does not generate contact terms.
  
• Contact terms are generated by KK modes of vector
  multiplet. It can be exponentially suppressed by
  AdS geometry and 5D mass of vector multiplet.