composition in gamma-jet?
A understanding of flavour
composition in gamma-jet sample is important for the SLT and b-jet energy
SLT analysis assume that flavour
composition in gamma-jet sample is same as that in W+jets (as a SLT reviewer)
For b-jet energy scale using
gamma-bjet balance, a flavour composition for tagged jets is required.
jet energy scale using gamma-bjet balance?
Initial investigation shows
that this method is a promising, but cetainly it requires a good understanding
of flavour composition
on tagged jets (especially charm and gluon jets)
See a talk
at Jet Corr. Meeting, Dec. 1, 2004
Does a b jet respone with
no SLT channel agree with light quark jet response? by Mel Shochet
Why is a tagging rate from
gluon jet much higher that that from light quark jets? by Tommaso Dorigo
Updated plots with Pythia
"jqcdfh" sample (Feb. 10, 2006)
in gamma-jet balance between Pythia and Herwig?
A gamma-jet balance between
Pythia and Herwig shows very difference response,
which could be a big systematic
for our jet energy corrections (very important for top mass measurement).
I have few good candiates
for the source of this difference.