Is there any groups working on FF's like CTEQ on PDF's?

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Discussion Overview

The discussion revolves around the existence of groups working on the parameterization of fragmentation functions (FFs), similar to how groups like CTEQ work on parton distribution functions (PDFs). Participants explore the availability of codes and parameterization forms related to FFs.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Some participants mention existing groups focused on PDFs, such as CTEQ, MSTW, and NNPDF, and inquire about similar efforts for FFs.
  • One participant references the Peterson function as a traditional model for FFs and notes Matteo Cacciari's contributions to more modern approaches.
  • There is a question regarding the availability of parameterization forms or code packages for FFs, akin to those provided for PDFs.
  • A participant seeks clarification on the term "ff," initially interpreting it as "flux" before confirming it refers to "fragmentation functions."
  • Another participant expresses uncertainty about the specifics of the parameterizations finalized by PDF groups and asks for clarification on what aspects are of particular interest, such as the number of eigenvectors.

Areas of Agreement / Disagreement

The discussion reflects a lack of consensus on the availability and specifics of fragmentation function parameterizations, with multiple viewpoints and some uncertainty regarding terminology and existing resources.

Contextual Notes

Participants express varying levels of familiarity with the subject, and there are unresolved questions about the specific needs and definitions related to fragmentation functions.

ccnu
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I know some groups on PDF's like CTEQ, MSTW, NNPDF...
Is there any groups working on the parameterization of fragmentation functions, and publish any codes that can be called?
 
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Peterson is the old standy. Matteo Cacciari has done work on more modern ones.
 
Vanadium 50 said:
Peterson is the old standy. Matteo Cacciari has done work on more modern ones.
Oh, thanks!
I searched "Matteo Cacciari" in inspire, and found "FastJet user manual".
I know other softwares like Pythia, Herwig..., but they are event simulation tools.
Are there any parameterization forms or any code packages about FF's like CTEQ does in PDF's case?
 
By ff do you mean flux?

I'm pretty sure the different PDF groups finalised the paramterisations quite a while ago. What is it you particularly care about? Number of eigen vectors or ?
 
RGevo said:
By ff do you mean flux?

ff = fragmentation functions
 

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