The STAR experiment

I tried increasing SC scaling by 30% from standard pp200 (1.0e-8 => 1.3e-8) while holding the GL steady. The result is some remaining undercorrection: DCAs of about -300 microns at bbcsum=1.5e5, and ~0 at bbcsum=4.0e5. Conclusion is that this is pretty good, but we can do a little better. It appears to me that the offset needs to be decreased (actually, a linear fit to the uncorrected plots suggested this too), and the scaling also by just a little bit.

When I plot dca vs. zdce+zdcw, pp400 looks identical to pp200! Plotting dca vs. bbce+bbcw (which is the scaler quantity used for correcting pp200 data), shows that there is a difference! I was nearly fooled.

My current calibration priority is to finish pp400 data. The BeamLine constraint calibration was already done for this data, and no static distortions should be any different from the rest of the pp200 run.

pp400 (actually 410 GeV) data was collected on days 153 and 154 in early June 2005.

The attached file is a before and after calibration comparion of DCAs.

http://www.star.bnl.gov/protected/hbt/kisiel/051018/BowlerSinyukovFit.php

The offline database API is a topic of discussion. This BLOG is to enhance understanding, generate documentation, record ideas and present possible improvements for review.

This is a copy of the web page that contains a log of the Sao Paulo grid activities. For the full documentaion, please go to http://stars.if.usp.br:8080/~suaide/grid/

This blog will contain thoughts, plans, descriptions and architecture for the online systems for Run_6. The CAD schedule can be found here... C-A Operations-FY06

Time	Talk	Presenter
17:30	Comparing normalizations ( 00:10 ) 0 files
17:40	Proton-lambda residual correlations in proton-proton ( 00:10 ) 0 files	Hania Gos (Warsaw University of Technology, SUBATECH)
17:50	p-La analysis ( 00:10 ) 0 files	Anneli (Subatech)

Time	Talk	Presenter
17:30	fit-range study summary ( 00:10 ) 0 files	debasish das (VECC)

Time	Talk	Presenter
17:30	Source velocity and K-pi correlations in d+Au ( 00:10 ) 0 files	Mikhail Kopytine (Kent State University)
18:20	Analysis meeting ( 00:10 ) 0 files
18:30	WPCF proceedings ( 00:10 ) 0 files	Zbigniew Chajecki (OSU)
18:40	WPCF proceedings (pi-Xi) ( 00:10 ) 0 files	Petr Chaloupka
18:50	SHD in CUCU200 ( 00:10 ) 0 files	Debasish Das (VECC)
19:00	Proton-lambda residual correlations in proton-proton- update ( 00:10 ) 0 files	Hania Gos (Warsaw University of Technology, SUBATECH)

Time	Talk	Presenter
10:30	Update on K-pi correlations in d+Au ( 00:10 ) 0 files	Mikhail Kopytine (Kent State University)
10:40	Trying to understand GenBod ( 00:10 ) 0 files	Zbigniew Chajecki (OSU)
10:50	Analysis meeting 2005 ( 00:10 ) 0 files	Debasish Das (VECC)