Friday, August 1, 2008

ycut versus njet

I had a quick look into the ycut versus njet. You can see plots and conclusions here. It seems fine to use the njet mode instead of ycut to reconstruct the higgs from jets, if necessary.

What I am not sure is whether it is fine to use the 2-jet mode for vertexing and flavour tagging. At least the ZVKIN algorithm uses the jet axis as a starting direction for the ghost track. How the algorithm behaves when the starting direction is far away needs to be investigated.

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