Manchester ATLAS Group


This page is used to store information relevant to the Manchester ATLAS group.


ATLAS Experiment:

  • ATLAS Collaboration, The ATLAS Experiment at the CERN Large Hadron Collider , 2008 JINST 3 S08003.
    • Warning: Large file!
    • Inner Detector (ID), e.g. 4.1 (4.2, 4.3 ), 10.2.
    • Trigger, e.g. 8.1, 8.2 (especially first section), 8.3
  • ATLAS Collaboration, Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics , CERN-OPEN-2008-020, arXiv:0901.0512v2 [hep-ex].
    • Warning: Large file!
    • This is the so-called CSC book

ATLAS High Level Trigger (HLT = L2 + EF):

  • The High-Level-Trigger Steering of the ATLAS experiment , IEEE NPSS 2007, com-daq2007-020
  • The ATLAS High Level Trigger Steering , CHEP07, daq-conf-2007-026
  • Chapter, Trigger - HLT Track Reconstruction Performance , in the CSC book above.

ATLAS Tracking:

  • Concepts, Design and Implementation of the ATLAS new Tracking (NEWT) , ATL-SOFT-PUB-2007-007, December 2007.
  • Single Track Performance of the Inner Detector New Track Reconstruction (NEWT) , ATL-INDET-PUB-2008-002, March 2007.


  • Glossary A useful glossary of particle physics terms.


In this section there are various useful notes on ATLAS computing at Manchester.

ATLAS Software on Linux8

Various ATLAS release are installed on the linux8 cluster at Manchester, for use instructions, see ManAthenaInstallationsSLC5.

CERN cvs & svn Access on Linux8

General instructions for cern cvs access are here and for svn access are here. On linux8 you can use kerberos authentication to gain access to cvs or svn via ssh, simply do the following, replacing username with your username on lxplus:

kinit --no-afslog username@CERN.CH
The standard checkout commands should now work without a prompt for your password. Note that if your username on the linux8 cluster is different to your cern username, you will have to change the SVNROOT variable:
export SVNROOT="svn+ssh://"
where username should be your cern username. This needs to be done after setting up the atlas release (since setting up the release changes this variable).

Manchester has a group area within the ATLAS svn repository - you can see it's contents here.

If you need to access the manchester cvs repository at cern you need to do:

If your cern username is different to you linux8 one, then you will need:

Ganga & dq2

The latest version of ganga is installed on all the linux8 nodes (in /opt/ganga/install) & should already be in your PATH. To enable the atlas specific extensions, you just need to do:

export GANGA_CONFIG_PATH=/afs/
before running ganga. It is also possible to use the cern installation, to set it up do:
source /afs/

To use dq2 it is usually best to use the up-to-date installation at cern. To set up dq2 do:

source /afs/
It is best to tell dq2 that you are in the UK, not cern, by doing:

Useful Utilities

See this page for a list of useful bits of software & scripts.

Mailing lists

Some useful mailing lists:

Event Filter Tracking


ATLAS Twikis:

ATLAS Meetings:

Activity Sub-Pages

Physics Analysis

-- MarkOwen - 21 Sep 2009 -- SteveMarsden - 03-Jul-2012

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