[Rivet] Analysis.

[Andy Buckley]

On 02/08/11 18:11, Pablo Bueno-Gomez wrote:
> Hello, I am writing an analysis code for ALICE at the moment and I would
> like to implement the condition that in some of the already validated
> analyses is referred as: "Only the INEL distributions have been
> considered here." Should this be somehow implemented in the code?, or
> maybe as a parameter of the MC generator in the agile-runmc line? Any
> help would be apreciated. Thank you in advance.

Hi Pablo,

There is no way that this can be implemented in the code... in fact, 
there is no way that it can be implemented for any generator other than 
PYTHIA 6! (and strictly only for the version and tune of PYTHIA 6 used 
in the analysis.) That's why -- hopefully -- the trend is firmly moving 
away from analyses where the data has a PYTHIA-based correction factor 
applied.

So the best you can do, unfortunately, is to only enable the inelastic 
QCD process in PYTHIA and to add a similar comment into the .info file 
for your analysis.

By the way, is it definitely just the inelastic process that is to be 
used in ALICE_2010_S8624100 and ALICE_2010_S8625980 (specified via the 
PYTHIA MSEL=1 parameter) or is PYTHIA's double diffraction also meant to 
be included? The latter is the usual definition of 
"non-single-diffractive", if that helps.

Best wishes,
Andy

-- 
Dr Andy Buckley
SUPA Advanced Research Fellow
Particle Physics Experiment Group, University of Edinburgh

The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.