unknown

Concerning the 'floating' mass peak and Zgg

 Objective:

Explore the pt-dependent mean mass position in data and MC and perhaps draw some conclusions about the quality of our simulations.

Details:

7 PR track plots with UPGR16 & fixed barrel

Under:

Geometry= UPGR16, 6 FGT disks , fixed barrel geometry.

Single electrons, 20 GeV ET, thrown at eta=0, 0.4, 0.8, 1.2, 1.6, 2.0


Fig 1, Z vertex=0

Special Attention Ought to be Paid to Zgg

The collaboration has concerns about the SMD, and not without reason.  They, they SMDs, have been notoriously hard to understand and model.

Cut Variation Tests

Goal:

To test the stability of the cross section measurement to changes in the analysis cuts and, if necessary, assign a systematic uncertainty for cut variations.

Early Studies

  

Jigsaw Fits (2nd try)

 Following up from this post concerning the modeling of the invariant m

6 radiation length study for UPGR16 + SSD

Under:

Study of the dead material in front and behind FGT.

3 versions of GEANT geometries were investigated:

TPC Pt and DCA resolution

[Update on 2010-06-21: global track momentum resolution has now also been studied using Cosmic rays study, version 2, with some as yet unexplained good performance at very high pT

TPC performance

 Documentation on performance of the TPC
 

Candidate Level Comparisons

Objective:

Data/Filtered Pythia Inv. Mass Distributions

Details

Data Vs. T2 Platinum (see here)

Cuts:

Run 9

Collect documentation on run 9 here.

Goals

<z> Details

<z> Details

 

New Requests

Under:

In the near future we hope to have a dedicated drupal module available for entering embedding (and simulation) requests.

Current Requests

Under:

Current Requests were either submitted using the cgi web interface before it had to be removed (September 2007) or via email to the embedding-hn hypernews list.

Operations (OBSOLETE)

Under:

The full list of STAR embedding requests (Since August, 2010):
http://drupal.star.bnl.gov/STAR/starsimrequest

01 statistical analysis of 2008 HV

Under:

 Goal: study eta dependence of 2008 BTOW HV


Fig 1 Eta-phi distribution of HV

Run 8 BTOW Calibration (2008)

Under:

 2008 BTOW calibrations 

  1. BTOW HV used in 2008 are in the file »

20 BSMD saturation

Under:

 The isolated BSMD cluster algo allows to select different range of tower energy cluster as shown in Fig.1

general routing for the top and bottom GEM, August 16,

Under:

 these Gerber files  show the general routing for the top and bottom GEM foil layers plus a representative sample of the GE