partial barrel vernier scan and task list

 In the past I've shown plots showing a fairly large background in the BHT3 event rate, and at the last meeting I showed how clean and clear the vernier scan for the BBC was.

Quick Shower Shape Study

Below are a few quick studies showing the robustness of the Bayesian model comparison approach to shower shape analysis.

Adding ETOW to W-Algo

I included the Endcap towers in only the away side veto sum in Jan's W-algo ver4.2.2 (near side will come later).  Below are some plots before and after the changes.

covariance matrix

covariance matrices

 p0 sin + p1 cos + p2 sin^3

west blue, fill 10368

 8.17e-06  4.60e-08  -1.02e-05

Run9 500 GeV BTOW Relative Gains

The relative gains for the BTOW in the run9 500 GeV running were calculated using "Scott's Method" based on the slopes of the ADC spectra.

2009 Spin QA: 500GeV Part II

2009 Spin QA: 500GeV Part II

 

Ws at STAR Run 9 - algo ver 4.2

Last week  results of W-algo (ver 4.1) from Run 9 data have been presented to spin PWG. Since then one error has been fixed and W-algo was  improved.

BEMC Geometry Study

Run6 FPD Single Photon GSTAR

Using the geometry configuration y2006g, which apparently has the east FPD at "far" position (x>~50cm), we look at the response of Yiqun reconstruction to single photons.

Fall '09 Upsilon talk drafts

See attached drafts...

New table for TPC slewing

Based on recent work I've done regarding First look at TPC slewing in Run 9 data, and presented at

2005 Dijet Cross Section Analysis Note

The 2005 Dijet Cross Section Analysis Note is attached.

A presentation for this analysis was made on September 10, 2009 and is available here:

Yifei's updated plots (click me)


Talk time : 13:10, Duration : 00:20

   Wider binning:

1) Efficiency with thin PXL only, power-law at low pt and flat at high pt. http://www.star.bnl.gov/protected/lfspectra/yfzhang/hft/upgr15/fig1RB.gif

D_s reco progress (click me)

Speaker : Gang Wang


Talk time : 12:50, Duration : 00:20

http://www.star.bnl.gov/protected/bulkcorr/rexwg/service/HFT/Ds_Sep11_2009.ppt

CDR needs (click for v20 link)


Talk time : 12:30, Duration : 00:20

 

 

http://drupal.star.bnl.gov/STAR/node/15476/

HFT Software

2009-09-11 13:30
Etc/GMT-5
Friday, 11 September 2009
510-4867333, at 17:30 (GMT), duration : 00:00

Here

TimeTalkPresenter
12:30CDR needs (click for v20 link) ( 00:20 ) 1 file
12:50D_s reco progress (click me) ( 00:20 ) 1 fileGang Wang
13:10Yifei's updated plots (click me) ( 00:20 ) 1 file

calculation of correction factor to kt with STAR simulated datasets for dijets.

Di-jet cross section from the page :

 

Rough cut of EEMC SMD spacer geometry

The SMD spacer is added to the EEMC geometry, as well as material in the front and back of each SMD plane.
 

Management and Convenors

Ws at STAR Run 9 - spin PWG presentation