Question regarding Lab cross section of spectra

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Discussion Overview

The discussion revolves around the differences between various types of cross sections in particle physics, specifically the "absolute cross section," "real center of mass cross section," and "lab cross section." Participants seek clarification on whether these terms refer to the same concept or if they have distinct meanings, particularly in the context of experimental setups.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant questions whether the absolute cross section, real center of mass cross section, and lab cross section are the same, indicating a lack of clarity on the definitions.
  • Another participant asserts that these terms usually refer to different reference frames, suggesting that they are not equivalent.
  • A request for an explanation of the differences between the three types of cross sections is made, indicating a desire for more detailed information.
  • One participant advises discussing the matter with a supervisor, implying that guidance from an experienced individual may be beneficial.
  • A request for context about the discussion is raised, indicating that additional background information may be necessary for understanding.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the definitions and relationships between the different types of cross sections, indicating that multiple competing views remain and the discussion is unresolved.

Contextual Notes

The discussion lacks specific definitions and detailed explanations of the terms mentioned, which may lead to misunderstandings. The relationship between the different cross sections is not fully explored, and the context of the experiments referenced is not provided.

eigenstaytes
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I'm currently doing some research at the moment for my professor, and he gave me a list of things to look at. Before he had me calculate the "real center of mass cross section." Now, starting at point 0 for publication, he's having me go through and do some other things. In his list of things to do, he talks about the "absolute cross section," and the "lab cross section." Is it safe to assume that all three of these are the same? All I knew about was the lab and center of mass, nothing about the real or the absolute. If not, is there any reference you guys have that explains the difference between them all? I haven't been able to find anything.

Thanks in advanced!
 
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eigenstaytes said:
I'm currently doing some research at the moment for my professor, and he gave me a list of things to look at. Before he had me calculate the "real center of mass cross section." Now, starting at point 0 for publication, he's having me go through and do some other things. In his list of things to do, he talks about the "absolute cross section," and the "lab cross section." Is it safe to assume that all three of these are the same?
No.
All I knew about was the lab and center of mass, nothing about the real or the absolute. If not, is there any reference you guys have that explains the difference between them all? I haven't been able to find anything.
You are correct that these terms refer, usually, to different reference frames.
The details will depend on the experiment set-up.

You know - it's a good idea to talk to your supervisor about this.
 
Would you be able to explain the differences to me about the absolute cross section, real CoM cross section, and lab cross section?
 
what's the context?
 

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