Status Akiya Miyamoto KEK 20 Aug2008 ILD Asia
- Slides: 10
Status Akiya Miyamoto, KEK 20 -Aug-2008 ILD Asia Meeting
MCProduction n Bhabha @500 Ge. V. u Pre-selection: |cosq(e- or e+)| < 0. 92 and Acol(e-, e+) < 15 ( Acol > 15 in the PPT files of last meeting was typo. ) u Jupiter jobs for gldprim_v 04/gldapr 08_14 m/j 4 ldc_v 04. l w 11782 (3973/3. 84 M), w 11783(7173/3. 84 M), l w 11784(6163/3. 84 M), w 11785(4071/3. 84 M) Completed except w 11782(gldapr 08_14 m and j 4 ldc_v 04) n Mthomson’s uds 350 Ge. V and 500 Ge. V u 10 K events for 3 geometries each completed. n Tau pair @500 Ge. V: Processing new Std. Hep files from DESY u ep+1. 0 em-1. 0_e 3 e 3_01. stdhep DESY-e 3 e 3 -em. L-[geom]-[ev]-[seq]. root u ep-1. 0 em+1. 0_e 3 e 3_01. stdhep DESY-e 3 e 3 -em. R-[geom]-[ev]-[seq]. root Jupiter production in progress. Aiming 20 fb-1 for 3 geom. ~ 90 kev. each Akiya Miyamoto, KEK 2
Tau pair distributions Esum(Ge. V) Akiya Miyamoto, KEK E(p- ) (Ge. V) 3
MC Production Plan n Next: u Complete 20 fb-1 of DESY tau pair. ( by early next week ) u w 11782, gldapr 08 and j 4 ldc u any requests ? Akiya Miyamoto, KEK 4
single kaon 0 L: ~10 Ge. V problem gldprim_v 04, |cosq|<0. 95 region, NPFO==1 Need to correct energy dependance Problem: : Resolution is not smooth at E=10 Ge. V. why ? Akiya Miyamoto, KEK 5
Single kaon_0 L Problem (2) n Studied by ~1 Ge. V step around 10 Ge. V n Observed a big difference seen between 12 Ge. V and 13 Ge. V Linearity Resolution 12 Ge. V 13 Ge. V E(Ge. V) 1/√E(1/√Ge. V) Non-Linearity could be collected. But linearity correction could not improve resolution. Akiya Miyamoto, KEK 6
LCPysics. List propeprty n According to the web site for LCPhysics. List (http: //www. slac. stanford. edu/comp/physics/geant 4/slac_physic s_lists/ilc/physlistdoc. html%22 ) n LCHadron. Physics for kaon_0 L u Bertini cascade model for 0 -13 Ge. V l “Generate final state for hadron inelastic scattering by simulating the intra-nuclear cascade. ” u Quark-Gluon String with Precompound(QGSP) for 12 Ge. V to 100 Te. V l QGSP: Apply the quark gluon string model for HE int. with Nuclei excited nuclei is de-excited by precompound model A tentative conclusion: It would be better to compare point-by-point, not getting the stochastic term by fitting. Akiya Miyamoto, KEK 7
Relative difference of d. E/E |cosq| < 0. 5 d. E/E Single kaon_0 L Akiya Miyamoto, KEK Single kaon_0 L 8
kaon_0 L ( cosq dependance ) 100 Ge. V kaon_0 L, gldprim_v 04 There is a cosq dependance Effect is is small for |cosq| < 0. 5 or E < 20 Ge. V Need to correct to get resolution for all angular region Akiya Miyamoto, KEK 9
kaon_0 L: Satellites vs Marline Satellites results were compared with the result by Takahashi san Jupiter data were analized by Marline and Pandora Discontinuity at 12 Ge. V is not seen. Differences among geometries are smaller. Why ? Akiya Miyamoto, KEK 10
