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Revised pythia estimates

Updated on Tue, 2008-04-08 21:43. Originally created by jwebb on 2008-04-08 19:25.
Abstract: I have Comparison with Cross Sections (Pythia estimates, prompt photon yields) shown projections for single photon yields in the pp2006 data which were flawed.  They overestimated the luminosity for a fixed sample size by a factor of ~3.  The problem was due to misinterpreting the definition of "tried" and "accepted" events in pythia 8.1.  New projections are presented for a cross check with yields extracted from data.

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Yield estimates based on single-particle MC sample, and comparison w/ pythia.

Updated on Fri, 2008-04-11 10:45. Originally created by jwebb on 2008-04-08 15:52.
Abstract:  Based on EEmc Gammas via conversion method, retool from previous attempt at extracting yields, we generate a new MC sample.
 
Event sample:
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SMD Band Structure - Tower Energy Correlation

Updated on Mon, 2008-04-07 16:44. Originally created by wleight on 2008-04-07 14:49.

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

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EEmc Gammas via conversion method, retool

Updated on Tue, 2008-04-08 15:56. Originally created by jwebb on 2008-04-06 17:01.

A few notes on previous studies.

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

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JFAZJ BLOG

Updated on Sun, 2008-04-06 09:07. Originally created by jfazj on 2008-04-06 09:07.

High pT phi meson reconstruction

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List of systematic studies for gammas

Updated on Thu, 2008-06-12 13:09. Originally created by jwebb on 2008-04-05 16:11.
This blog entry will be used to collect ideas which I happen to think of for systematic studies for gammas.
 

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Weight of SSD componants

Updated on Wed, 2008-04-09 14:59. Originally created by bouchet on 2008-04-03 16:00.

for each element :

description  NAME

/path    [Weight]

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PWG Analysis Update

Updated on Sun, 2008-07-27 23:45. Originally created by kocolosk on 2008-04-03 12:49.

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

grid-links, details

Updated on Wed, 2008-04-02 21:22. Originally created by balewski on 2008-04-02 21:22.

to view my cert:

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

 

Jerome's instruction:

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

Updated on Sat, 2008-04-05 13:32. Originally created by jwebb on 2008-03-31 18:32.
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.
 
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