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Higgs Boson Mass In SUSY Seesaw Model
Jin Min Yang
Based on: Cao, Yang , Phys. Rev. D 71, 11170 ( 2005 )
[ hep-ph/0412315 ]
Institute of Theoretical Physics,
Academia Sinica, Beijing
Part I: Physics
(1) Higgs boson
SM: light Higgs EW data
MSSM: mh mZ (tree-level)
mh 130 GeV (loop-level)
(3) Neutrino Yukawa coupling
large in SUSY see-saw model
Loop effects of neutrino in Higgs sector ?
Completely decouple at EW scale ??
(4) Recall top/stop loop effects
mh mZ mh 130 GeV
Top/stop loop effects
large Yukawa coupling
SUSY breaking
(5) Back to neutrino/sneutrino effects
large Yukawa coupling ( )
Sizable effects
sizable SUSY breaking ( ? )
R mass scale MR >> weak scale
SUSY breaking for R soft-term MR
(7) Our result
Neutrino/sneutrino contribution to mh:
opposite to top/stop effects
sizable (say -30 GeV) if