Mott Analysis

Data Files

 CODA writes the data to this disk: /data/mott

Analyze a run

 In the directory: /work/idaq/Mott/Analysis/decoder/
 Type: decode.pl RunNumber

Analysis Macros

Simple commands to plot data:
root [1] T->Draw("FADC_CH1:Iteration$","","*l",10,100)
root [2] T->Draw("S1m_CH4:Entry$","","*l",100,1000)
root [3] T->Draw("TDC18-TDC17")

There are several macros to be used for the analysis. All are in opsmdaq1 in the directory:

 /work/idaq/Mott/Analysis/macro/

To plot the Mott FADC Pedestals:
[102] idaq@opsmdaq1 > root
root [0] .L FADC_Ped.C
root [1] FADC_Ped t
Enter Run Number: 
7154
root [2] t.Loop()

To calculate Mott Asymmetries:
[102] idaq@opsmdaq1 > root
root [0]  .L MottAsym.C
root [1]  MottAsym t
Enter Run Number: 
7154
root [2] t.Loop()

Analysis Help

• ROOT provides a utility that generates a skeleton class designed to loop over the entries of the tree:

 root [0] TFile *f = new TFile("Mott_Sample_7231_0.root");
 root [1] T->MakeClass("MyClass")
 Files: MyClass.h and MyClass.C generated from Tree: T

• Mott Summary (April 2012) Media:Mott_Summary_April2012.pdf Media:Mott_Summary_April2012.ppt
• PEPPo Electron Mott Results (July 2013) Media:PEPPo_Mott_Talk.pdf Media:PEPPo_Mott_Talk.pptx

Silo and Farm

* Group Area 

Unix application area (non data): /group/positron

• Silo

Log in to ifarml64.jlab.org

Stub files are located: /mss/accel/peppo/raw

Use Jasmine utilities to access files read more

The corresponding cache area: /cache/mss/accel/peppo/raw

• Farm

Use Auger utilities to access farm read more

Must be member of Unix group: "positron"

Use project code: "positron"

Root is installed: /apps/root/

• Work Disk (Dedicated)

Self managed work 1TB area: /work/accel/peppo

• Volatile Disk (Scratch)

Auto managed volatile 1TB area: /volatile/accel/peppo

Reservation = 0.5TB (space between 0.5-1.0TB may be auto-deleted)

PEPPo production data is on the silo here: /mss/accel/peppo/raw

Old file before the experiment: /mss/accel/positron/PEPPo or /mss/accel/positron/mott

When from silo are moved here automatically: /cache/mss/accel/peppo

Action Item

1. Ask Anthony Cuffe to move opsmdaq1 files to opsmdaq0 before opsmdaq1 is removed