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SMD Band Structure - Tower Energy Correlation

To examine whether or not the appearance of band structure in the SMD response was correlated to the response of the towers overlapping with a given SMD strip, I filled a histogram of BSMDE strip i

EEmc Gammas via conversion method, retool

A few notes on previous studies.

1.0 Definition of D=log(Epost/Esmd) leads to "underflow" events when Epost=0.

JFAZJ BLOG

High pT phi meson reconstruction

List of systematic studies for gammas

This blog entry will be used to collect ideas which I happen to think of for systematic studies for gammas.
 

Weight of SSD componants

for each element :

description  NAME

/path    [Weight]

PWG Analysis Update

 Update on Run 5 charged pion A_{LL} for Spin PWG meeting.

grid-links, details

to view my cert:

https://pki1.doegrids.org/displayBySerial?op=displayBySerial&serialNumber=22369

 


Jerome's instruction:

(in progress) EEmc Gammas via conversion method, yield estimates for 2009

Abstract:  We estimate the event yields which may be obtained using the conversion method in the 2009 run.
 

1.0 Event Sample and Cuts

Event sample:
 
1. Data from ppLong2
2. All fills after L2gamma EEmc elevated to physics
4. Select trigger ID 137641
 
Cuts:
 
Before extraction:
1. Require candidate to be w/in the EEMC with pT > 5.0 GeV.
2. Isolation cut -- ET / ETR<0.3 > 0.9
3. Charged particle veto (CPV) -- require sum of all preshower-1 tiles w/in R < 0.3 to be == 0
4. Analyzing cut -- sum preshower-2 tiles w/in R < 0.3 is greater than zero (i.e. at least one tile w/ ADC > 3 sigma + ped).
 
After extraction:
5. Require -8 < log(Epost/Esmd) < -2
 

2.0 Monte Carlo

 
Event Sample
1. 125k Single gammas w/ 2006 geometry
2. 125k Single gammas w/ 2009 geometry
3. Thrown w/ vertex width of +/- 30cm
4. Thrown w/ eta range 0.8 to 2.2
5. Thrown w/ 4 muons in event to establish vertex.  Muons thrown w/ eta = -0.25.
6. pT sampled from e^{-0.6} distribution for pT > 5.0 GeV.
 
Analysis:
MuDsts are created from the MC events, and gamma trees are created.  Events are subjected to same analysis cuts as in section 1.0 above.
 

FileCatalog API

This blog will report on modifications made to the FileCatalog API on W13/08 and following weeks. It will serve as self-documentation.

EEmc Gammas via conversion method, systematics III

 

1.0 Fixing the hadronic width parameter

 
Figure 1.1 -- Width of the hadronic background contribution vs pT (see EEmc Gammas via conversion method, systematics II section