1 / 11

Weeks of 1/1-10/2007

Weeks of 1/1-10/2007. Getting back up to speed … Worked on Poisson fit problem (glitch at 1400 MeV/c 2 ) Rearrange tasks in the way fits are done:. Old Way:. New Way:. Make fit Read either Data or Toy MC sample Write results file. Make toy MC ntuple. Make fit

arnie
Download Presentation

Weeks of 1/1-10/2007

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. Weeks of 1/1-10/2007 • Getting back up to speed … • Worked on Poisson fit problem (glitch at 1400 MeV/c2) • Rearrange tasks in the way fits are done: Old Way: New Way: • Make fit • Read either Data or Toy MC sample • Write results file. • Make toy MC ntuple • Make fit • Read either Data or Toy MC sample • Write results file. • Process output file: • Make toy MC ntuple • Make plots in PAW • Process output file: • Make plots in PAW Make tests using the toy MC ntuple

  2. More Tests on Toy MC Using Square plot and Poisson fit method (WMD/VZ)

  3. Square Plot/Poisson Fit(Perfect Toy MC!) Replace binned Toy MC input by bins with expected populations ! Phewww !!

  4. Square Plot/Poisson Fit(Almost Perfect Toy MC!) Replace binned Toy MC input by bins with expected populations rounded to nearest integer value ! Phewww !!

  5. Square Plot/Poisson Fit(“Realistic” Toy MC!) Replace binned Toy MC input by bins with expected populations randomized with Poisson distribution. Puzzling !!

  6. Square Plot/Poisson Fit(Fit to Actual Toy MC Sample) Simply use the Toy MC sample. Puzzling !!

  7. Square Plot/Poisson Fit(Exclude Boundary Region from Fit) Simply use the Toy MC sample. Exclude boundary regions from fit. Puzzling !!

  8. Reminder plots

  9. Poisson Fit (Isobar Model) • Slight discrepancies • Binning may not be optimum • Reasonably satisfactory! Starting from very far away, get essentially correct solution.  Poisson method “per se” is correctly implemented.

  10. Poisson Fit (EIPWA) - Serious Problem

  11. Problem with Splining?

More Related