[Rivet] CDF_2006_S6653332

[Jon Butterworth]

Hi both,

Since Emily is on CDF, I presume her knowledge is definitive ;)
So yes please, Emily, please do make the analysis match the paper!

As we have discussed often, in general rivet should not be attempting to 
make analyses which depend upon the details of detector simulation. We 
rely on experiments to produce measurements corrected to the particle 
level (or in some cases to to Z or W level).

Cheers,
Jon

Lars Sonnenschein wrote:
> Hello Emily
> when I have written the analysis I have not considered it as an efficiency 
> cut, which is corrected for.
> It depends on the details of their simulation. If they have just matched 
> the jets to partons you are right. If the full GEANT reconstructed jets
> are checked e.g. for EM fraction to distinguish between jets and photons
> it would be more accurate as implemented.
> 
> Similar one could match jets to b or c quarks for heavy flavour tagging.
> But then one would have difficulties to explain the b, c and light jet 
> fraction in the figure of merit, which are the eta and pT distributions of 
> tagged jets.
> 
> Unfortunaletly I haven't had the time to generate a large Z+b jets
> sample to check if the published distributions come out right.
> 
> In the optimal case one would exactly reproduce their generated event
> samples (same generator/parameter settings) to verify that the 
> distributions match.
> 
> Please go ahead and check if this improves
> 
> 	Lars
> 
> 
> 
> On Fri, 8 Feb 2008, Emily Nurse wrote:
> 
>> Dear Riveters,
>>
>> The Rivet routine CDF_2006_S6653332 seems to attempt to simulate the  
>> analysis ID cuts such as electron calorimeter HAD/EM etc at the  
>> generator level. This is impossible to do and is also not necessary  
>> as the result is corrected for the ID cuts. I'm happy to work on  
>> correcting this if given the go ahead.
>>
>> Cheers,
>> Emily.
>> _______________________________________________
>> Rivet mailing list
>> Rivet at projects.hepforge.org
>> http://www.hepforge.org/lists/listinfo/rivet
>>
> 

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Prof. Jonathan M. Butterworth,                  J.Butterworth at ucl.ac.uk
Head of High Energy Physics              http://www.hep.ucl.ac.uk/~jmb/
Physics and Astronomy Department                  Tel: +44 20 7679 3444
University College London                 Gower St, London WC1E 6BT, UK
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~