1. Taikan Suehara, ILD-asia opt/soft meeting, 2008/07/02 page 1 Tau/SUSY study updates Taikan Suehara

2. Taikan Suehara, ILD-asia opt/soft meeting, 2008/07/02 page 2 あまりすすんでません… SUSY –Quick view of chargino-pair distribution –Neutralino (not yet) Tau –Mokka events –AFB background (not yet) –Polarizing sample (ongoing)Topics

3. Taikan Suehara, ILD-asia opt/soft meeting, 2008/07/02 page 3 Chargino pair Still some difference in chargino/LSP mass

4. Taikan Suehara, ILD-asia opt/soft meeting, 2008/07/02 page 4 w19013/w19014 samples are found in LDC grid directory –lfc:/grid/ilc/mc- 2008/simulated/LDCPrime_02Sc/CMS_500_ppr02/M06-06- p03_ppr002_e3e3_w19013_500_LDCPrime_02Sc_LCP_ep +1.0_em-1.0_Slac_SM_00xx.slcio Gear files also found in the grid Steering file missing – asking to Mark Local download is partially done Copying (replica) to KEK SE is ongoing Mokka events

5. Taikan Suehara, ILD-asia opt/soft meeting, 2008/07/02 page 5 Performing reconstruction in the grid –or local if easier Processing TaJet/Tau proc. to Mokka samples Comparing pi0 reconstruction between gldprim_v04 and LDCPrime_02Sc (non-pol data) Selection efficiency should also be compared Angular resolution (compared to MC truth) should be also checked (need to write some code) A pol resolution needs polarizing sample –In both Jupiter & Mokka? or Jupiter-only is enough? By end of July? Mokka events (strategy)

6. Taikan Suehara, ILD-asia opt/soft meeting, 2008/07/02 page 6  /  0 invariant mass distribution  invariant mass: invmass between the prong and all neutrals combined. Geometry width( ,MeV) # accept Gldapr08 95.4 7987 Gldprim 99.6 8099 J4ldc 99.8 7812 No significant difference.  0 invariant mass: event with >=2 neutrals (if >2 neutrals, nearest neutrals are combined till 2 neutrals rest.) Geometry width(s,MeV) # accept Gldapr08 14.7 2662 Gldprim 15.0 2410 J4ldc 16.5 2219 Better performance in gldapr08!