How Can I Compare Parton Distribution Functions Without Data from Other Groups?

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Discussion Overview

The discussion centers around the challenge of comparing Parton distribution functions (PDFs) plotted by one participant using Mathematica with those published by other research groups, without having access to their data or Mathematica codes. The conversation explores methods for comparison and the availability of external resources.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant seeks guidance on how to compare their plotted Parton distribution functions with those from other groups, specifically mentioning a lack of access to data from groups like H1 and Cteq.
  • Another participant interprets the question as a request for technical assistance with plotting multiple graphs in Mathematica, suggesting a reference link for plotting syntax.
  • A later reply emphasizes the need for more specific information about the desired comparison, indicating that simply searching for graphs online may not suffice.
  • One participant suggests checking the websites of various research groups for their published results, noting that different groups present their data in varying formats.
  • Another participant mentions a universal interface called lhapdf, which could provide relevant proton PDF sets, although it is noted that it may not have a direct Mathematica interface.

Areas of Agreement / Disagreement

Participants express differing interpretations of the original question, with some focusing on technical plotting assistance while others emphasize the need for specific data comparison methods. No consensus is reached on how to proceed with the comparison.

Contextual Notes

The discussion highlights limitations regarding the availability of data from other groups and the potential challenges in accessing and utilizing external resources for comparison.

Who May Find This Useful

Researchers and students interested in Parton distribution functions, data analysis in particle physics, and those seeking methods for comparing theoretical results with published data.

Elham1990
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TL;DR
Parton distribution functions
Hello
I plotted the Parton distribution functions in Mathematica. Now I want to compare the graphs drawn with the graphs of other groups(xu and xd). How should I do this?
 
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Are you just asking how to plot several graphs in the same plot in mathematica? In that case I guess have a look here https://reference.wolfram.com/language/ref/Plot.html, the second syntax is what you want. Maybe I am not understanding what the question is?
 
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I'm asking about comparing my results with other groups. I don't have other groups data such as H1, Cteq. I Plotted my results in Mathematica and I have other groups article. now, how can I compare these without their Mathematica codes?
 
If I type "graph of parton distribution functions" into Google, I get two million hits. OK, so they are not all useful, I am sure, but there are many dozens (probably hundreds) of such plots, and so I conclude that isn't what you want.

You need to be more descriptive in what you want - and this is the third time you've been asked.
 
Elham1990 said:
I don't have other groups data
Different groups publish their results in different formats, have you checked out their respective websites?

There is a universal interface called lhapdf https://lhapdf.hepforge.org/ where you will probably find any today relevant (proton) pdf set. I don't think they have a native Mathematica interface but the python one is pretty usable if I remember correctly.
 
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