[Rivet] CDF jet shapes

Hendrik Hoeth hendrik.hoeth at cern.ch
Tue May 12 11:31:26 BST 2009


Hi Lars,

Thus spake Lars Sonnenschein (sonne at mail.cern.ch):

> At least the CDF_2005 jet shape analysis does make use of a different
> jet algorithm, namely: FastJets::CDFMIDPOINT

CDF_2005 is not just broken because of fastjet-2.4.0. Even with
fastjet-2.3.4 it doesn't match the data. The rho distributions are above
the data over the whole range between r=0 and r=R. That's impossible by
the definition of the observable. This thing is simply broken.

> What is about the CDF_2008_S7782535.hh b-jet shape analysis?
> It uses the same jet algo + jet shape projection.

A first quick look at CDF_2008_S7782535 shows first of all that there is
a binning mismatch between reference data and Monte Carlo in
CDF_2008_S7782535_d05-x01-y01. This also needs to be fixed, I'll open
another ticket after lunch.

     Hendrik

-- 
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