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Status of ND280 Software at UVic

Maj 2006, ND280 Software Workshop, Triumf

Christian HansenUVic

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• Installation

• Analysis Example– As an independent package– As a CMT program– Some code examples

• Trial to use reconstruction

Contents

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• ND280Soft is installed at UVic

– followed these steps

• ND280Soft can be run from any “fate” account– following these steps

Installation

http://hepweb.phys.uvic.ca/~hansen/T2K/ND280SOFT/install.html

http://hepweb.phys.uvic.ca/~hansen/T2K/ND280SOFT/run.html

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• Install CMT and source the setup file

• Connect with the repository jnurep@jnusrv01.kek.jp

• Set variables, check out, configure and compile

How to Install

http://hepweb.phys.uvic.ca/~hansen/T2K/ND280SOFT/install.html#cmt

http://hepweb.phys.uvic.ca/~hansen/T2K/ND280SOFT/install.html#cvs

http://hepweb.phys.uvic.ca/~hansen/T2K/ND280SOFT/install.html#checkout

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• An analysis example reads in a .root file from the

ND280 software and does some analysis– Have been done in two ways

• as an “independent” program– Makefile taking care of the link to the ND280 software

• as a cmt package (“correct” way)– requirement file taking care of the dependencies

Analysis Example

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• A program that use the ND280 software – Makefile (see next slide)

The Independent Program

/home/chansen/ANALYSIS on neut03

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• Links in ND280 and ROOT in the program

Makefile

/home/chansen/ANALYSIS on neut03

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How to create a CMT Package • Follow these steps on e.g. a neut account

– source /home/trt2kmgr/ND280Soft/setup_user.csh – then go to a directory where you want the package

– Write your own analysis package in /src• can be both header (.hxx) and source (.cxx) files

• see example later

/home/chansen/analysisExample/v1r0/src on neut03

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How to create a CMT Package • Make a directory for an application

• Write an application with main()

/home/chansen/analysisExample/v1r0/app on neut03

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How to create a CMT Package • Go to cmt directory and edit requirements

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How to create a CMT Package • Source the setup file and compile

• Run the executable

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• An analysis example reads in a .root file from

the ND280 software and does some analysis– Same code has been used for both the Makefile and

requirements file approach– The code consists of

• AnalysisExample .hxx and .cxx• Parameters .hxx and .cxx (to read in management)

• management (to give run parameters to the program)

• runAnalysisExample

Code Examples

/home/chansen/analysisExample/v1r0/src on neut03

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• A management file controls the run

Management

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• Public function

– Loop• over all events

• Private functions:– Read in parameters

• from management

– Initiate Histograms– Fill the Tree

• from .root file

– Cut each events– Draw Histograms

• to eps, jpg or C

Header

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• The Fill Tree function

– Connects a root file– Reads the tree into memory– Set the address to where events goes; m_event

Fill the Tree

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• Do some analysis for each event

Loop

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• Use dump-event.exe to see what’s in a .root

• In this .root file and in this event.0000.0000 there are no hits or fits but there is a TG4TrajectoryContainer here: truth/G4Trajectories

Dump Event

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• Make histograms of trajectory’s energies

– Get this event’s trajectories in a container– Loop over trajectories using std::iterator– Fill histograms

Trajectories

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• Make histograms of primary particles’ energies

– Get this event’s primary vertex in a container– Get this event’s primary particles in a container– Loop over trajectories using std::iterator– Fill histograms

Primary Particles

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Histograms

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• Some useful links for using the software

– ND280 software

– Root

– Standard Template Library

Links

http://ale.physics.sunysb.edu/~mcgrew/t2k/nd280Doc/v1r0/dox/index.html

http://root.cern.ch/root/htmldoc/ClassIndex.html

http://www.sgi.com/tech/stl

http://en.wikipedia.org/wiki/Standard_Template_Library

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• Start to use some Reconstruction Software

• There is no tpcRecon yet

• Tried to use ecalRecon

• Checked out oaRecon and ecalRecon to fate

• Added use ecalRecon * to requirements

• Not trivial to use this software ...

A Trial to Start with Reconstruction

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• Use dump-event.exe to see what’s in a .root

• In this .root file there are THitContainers here: hits/fgd, hits/ecal, hits/mrd and hits/tpc

Dump Event with Hits

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• Get this event’s hit selection

• Make an algorithm result from the hits

• Define and initialize the TECALDelaunayCluster

A Trial to Start with Reconstruction

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• Cluster together the hits with the algorithm

TECALDelaunayCluster

• The result comes out as an TAlgorithmResult

• Get the fitted tracks in a container

A Trial to Start with Reconstruction

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• Loop over the fitted “oaTracks”

• Fill the momentum in a histogram

A Trial to Start with Reconstruction

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• Fitted tracks

– would we need a class for fitted tracks that looks more like a “helix” class?

TOATrack

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Conclusions and Future Work

• More info here:More info

Analysis• An analysis example

– Independent program with Makefile– CMT package with requirements file

Run • ND280Soft can be run from all fate accounts

Installation • ND280Soft installed at UVic

http://hepweb.phys.uvic.ca/~hansen/T2K/ND280SOFT/install.html

http://hepweb.phys.uvic.ca/~hansen/T2K/ND280SOFT/run.html

/home/chansen/ANALYSIS on neut03

Recon • Need to understand better how to use reconstruction

/home/chansen/analysisExample on neut03