Spin PWG

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2009.10.13 Jason EEMC geometry: position correlations

Effect of added layers in Jason geometry file (ecalgeo.g23)

Monte-Carlo setup:

2009.10.12 Jason EEMC geometry: effects of adding layers

Effect of added layers in Jason geometry file (ecalgeo.g23)

Monte-Carlo setup:

2009.10.05 Fix to the Jason geometry file

Why volume numbers has changed in Jason geometry file?

The number of nested volumes (nv),

2009.10.02 Jason vs. CVS EEMC geometry: sampling fraction and shower shapes

Tests with Jason geometry file (ecalgeo.g23)

Monte-Carlo setup:

10 Oct

October 2009 posts

EEMC geometry file (ecalgeo)

Concerning the High Mass Tail on the Pion Peak

At the PWG meeting a few weeks ago, people expressed concerns about the high-mass tail from the pion peak that, for higher PT bins, is underestimated by the pion peak simulation.

FHC cosmic ray test

Speaker : Xuan Li ( Shandong Univ. )


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

FHC pythia mini-bias simulation for Lambda

    I use the pythia mini-bias codes to study to look for the lambda decay products energy deposit in FHC with Lambda->n+pi0.

SMD Problems at the sector boundary

Abstract: Looks like there's yet another bug in the old EEMC geometry (which persists in my development version 5.21).  Throwing geantinos an phi = 105 degrees, we should be probing the boundary between two sectors (sectors 11 and 12 if I've got it right).  We expect to see two SMD planes.  We don't see two.  Worse, we don't see three (the only other valid possibility).  We see one plane.

Validation of EEMC MC Geometry

Abstract:  Summary of tests performed to validate eemc geometry version 5.21.
 
ecalgeo.g version 5.21

EEmc MC Geometry version 5.21

Data MC comparison

 Data and MC comparison for pion mass peak position..

 

Comparison with Other Results

Below you will find comparisons of the Run 6 cross section with recent Phenix results and the STAR Run 5 final result.  The lower panel is the statistical error on the Run 6 points.

2009.09.11 Test of corrected EEMC geometry: LOW_EM cuts

Test of corrected EEMC geometry: SVT and LOW_EM cuts

Monte-Carlo setup:

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.
 

new fit stuff

New Fits

New Fits for the physics asymmetries,  including transverse, sideways, and cubic correction

Check of material in corrected EEMC geometry

Tables