There are several processors to calculate different event shape variables:

• Calculation of the thrust axis and thrust value for each event using two different algorithms:
  • The Tasso algorithm calculates only the principle thrust value and axis.
  • Jetset algorithm calculates the principle thrust value and axis as well as the major and minor thrust value and axis.
• Calculation of the sphericity and aplanarity.
• A universal jet finder module originally developed by Satoru Yamashita for OPAL.

Available processor:

• ThrustReconstruction
• Sphere
• SatoruJetFinderProcessor

-- Main.iglesias - 02 Feb 2009
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