1. H. Nieto-Chaupis & G. Klämke
(In collaboration with K. Mönig, H. Nowak, and A. Stahl. )
DESY-Zeuthen

4. 100%
~50%

6. SHERPA
SIMDET
Signal
Background

7. SHERPA
PYTHIA
SIMDET + PILE-UP

10. SHERPA (4 particles FS)

11. Chargino studies (G. Klämke)

14. Fittino: general fit of MSSM parameters by using the
LC observables (e.g. cross-sections & masses).
Some MSSM parameters are fitted with FITTINO (others fixed):
Parameter
Input Value
Fit-Error without BR
Fit-Error with BR (5.7%)
tan b
9.0
6.29%
4.69% M1
99.54
0.092%
0.073% M2
192.57
0.140%
0.083%

23. Outline
●The smuon left decay into SPS1a scenario.
●A brief approach to the TESLA photon collider.
●Iterative measurements.
●Synopsis.

24. ● The smuon left decays into SPS1a scenario.
ISAJET 7.69 is used to generate the spectrum of masses, widths and BRs.
Prefered mode: (~30.20%) . Other modes containing have
high multiplicity final state (cascade decays from tau lepton).
Charguino does decay substantially into staus.
Assumption: universal BR right sleptons = 1 ( LSP candidate, m=95.5 GeV)

25. Slepton decays come from the coupling
Slepton prefers a Wino
→ cascade
Slepton only decays to a Bino
Charguino can decay into W and staus.
have more complicate decays.
Cascade decays could be observed if we have high efficiency.
Up to 4 muons FS could be observed
SUSY also give us important background

26. Available final statesBr Br
Final State
Final State

27. Additional effects also take place here!!
● A brief approach to the TESLA photon collider
Laser Beam
Conceptual Scheme of a
Gamma-Gamma Collider.
Lγγ
Electron Beam IP
Electron Beam
J=0, ECM =500 GeV CP CP
Laser Beam
Additional effects also take place here!!
√sγγ
Non-linear effects