Split-SUSY at LHC & ILC

Jin Min Yang

Institute of Theoretical Physics

Chinese Academy of Sciences

Outline

1. SUSY and Split-SUSY

3. Conclusion

2. Split-SUSY at LHC & ILC

|F |B SUSY

1. SUSY & Split-SUSY

Fine Tuning

GUT

ElectroweakBaryogenesis

Affleck-DineBaryogenesis

Inflation

Dark Matter

SUSY

• Fine-tuning

• GUT

• Dark Matter

TeV-Scale SUSY:

• Fine-tuning

• GUT

• Dark Matter

Split-SUSY:Arkani-Hamed, Dimopoulos, hep-th/0405159

Split-SUSY Spectrum:

• Sfermion very heavy

• Gluino < 18 TeV

• Higgs ( h ) < 150 GeV

• Higgs (H, A, H ) very heavy

• Chargino/neutralino < 1 TeV

Gluino, Chargino, Neutralino < 10 TeV GUT:

F.Wang, W.Wang, JMY, hep-ph/0507172

Gluino freeDark Matter: Chargino, Neutralino < 1 TeV

F.Wang, W.Wang, JMY, hep-ph/0512133

3. Split-SUSY at LHC & ILC

P

P

Gluino production at LHC:

Long-life gluino:

q

gq

q

Gluinonium: K. Cheung, W.Y.Keung, hep-ph/0408335

Chargino production at LHC & ILC:

P

P

1

1

+

_

e-

e+

S. H. Zhu, hep-ph/0407072 Kilian, Plehn, Richardson, Durham, Schmidt, hep-ph/0408088

ET

b

b

b-jet

b-jet ET

F.Wang, W.Wang, JMY, hep-ph/0512133

Through virtual effects :

Top-quark processes

Higgs boson processes

at ILC

at LHC

F. Wang, W. Wang, F. Xu, JMY, hep-ph/0612273

F. Wang, W. Wang,

F. Xu, JMY, hep-ph/0612273

F. Wang, W. Wang, F. Xu, JMY, hep-ph/0612273

4. Conclusion

Split-SUSY at LHC & ILC:

• Gluino < 18 TeV

• Higgs ( h ) < 150 GeV

• Chargino < 1 TeV

?? (20%)

? (50%)