1 / 14

Mass window and bining optimization

W Mass measurement in the tn qq channel. D. BOUMEDIENE CEA Saclay. Mass window and bining optimization Complete results for all the energies using the tn qq channel Check of the reproducibility Fragmentation systematic in the tn qq channel. = 200 GeV. Bining SG + Bck. Mass

gamma
Download Presentation

Mass window and bining optimization

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. W Mass measurement in the tnqq channel D. BOUMEDIENE CEA Saclay • Mass window and bining optimization • Complete results for all the energies using the tnqq channel • Check of the reproducibility • Fragmentation systematic in the tnqq channel 22/01/2001 - ALEPH Week

  2. = 200 GeV Bining SG + Bck Mass window DMW (Expected) MeV/c2 55x4 + 5x2 315  3 72-90 50x4 + 5x2 316  3 60x4 + 6x2 311  3 70-97 70x4 + 8x2 308 4 70x6 + 8x2 304 4 Mass window and bining optimization Large mass window  More luminosity but additional Background (ZZ) 22/01/2001 - ALEPH Week

  3. = 200 GeV Bining SG + Bck Mass window DMW (Exp.) MeV/c2 50x5x5 + 2x1x1 70-97 µvqq 221  2 50x5x3 + 2x1x1 70-97 evqq 234  2 Possible on e,µnqq ? 22/01/2001 - ALEPH Week

  4. Results @ 196 GeV 22/01/2001 - ALEPH Week

  5. Mass plot @ 196 GeV 22/01/2001 - ALEPH Week

  6. Results @ 200 GeV 22/01/2001 - ALEPH Week

  7. + 0.443 MW= 80.755 - 0.421 Mass plot @ 200 GeV Fit to the data @ 192 GeV 22/01/2001 - ALEPH Week

  8. Results @ 202 GeV 22/01/2001 - ALEPH Week

  9. Results @ <205> GeV 22/01/2001 - ALEPH Week

  10. Mass plot @ <205> GeV 205 nn cut optimization 22/01/2001 - ALEPH Week

  11. Results @ <207> GeV 22/01/2001 - ALEPH Week

  12. Stability and reproducibility checks in the tnqq channel nn test test cut nn 22/01/2001 - ALEPH Week

  13. Fragmentation systematic in tnqq channel With the half of the MC stat.: DMW frag. = 12 ± 7 MeV/c2 22/01/2001 - ALEPH Week

  14. 22/01/2001 - ALEPH Week

More Related