Luminosity in LHC: Engineer's Guide to Understanding

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Discussion Overview

The discussion centers around the concept of luminosity in the context of the Large Hadron Collider (LHC). Participants explore its definition, significance, and implications for data collection in particle physics, particularly regarding the frequency of collisions and the discovery of rare interactions.

Discussion Character

  • Conceptual clarification
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant expresses confusion about the definition of luminosity and its importance in the LHC context.
  • Another participant provides a link to a resource that may clarify the concept further.
  • A third participant reiterates the initial confusion and emphasizes the need for high luminosity to ensure a sufficient number of collisions for data collection, noting that low luminosity could significantly delay the discovery of rare interactions.
  • A later reply indicates that the question has been resolved, suggesting some level of understanding was achieved.

Areas of Agreement / Disagreement

The discussion appears to have moved towards resolution for the initial question posed, but it is unclear if all participants fully agree on the explanations provided or if further clarification is needed.

Contextual Notes

Some assumptions about the audience's prior knowledge of particle physics and luminosity may not have been addressed, which could affect understanding. The discussion does not resolve all nuances of luminosity and its implications.

Who May Find This Useful

Engineers and individuals interested in particle physics, particularly those seeking to understand the role of luminosity in experimental setups like the LHC.

kususe
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I'm an engineer.
What's luminosity? I don't understand the explanation of Wikipedia.
Why are physics glad if the luminosity grows up in LHC, respect of last year?
 
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for the second question I think the answer is http://slsbd.web.psi.ch/pub/cas/cas/node38.html"
 
Last edited by a moderator:
kususe said:
I'm an engineer.
What's luminosity? I don't understand the explanation of Wikipedia.

Read this, especially on pages 31-34

http://www.phys.spbu.ru/content/File/Library/studentlectures/schlippe/pp05-07.pdf

Why are physics glad if the luminosity grows up in LHC, respect of last year?

If the luminosity is too low, you are getting very few collisions and thus, very few data. Considering that the probability of finding one of these exotic interaction is very low, and you also need to have very good statistics, you want to have as high of a collision rate as you can to increase your chances. Too low of a luminosity, and it will take months, if not years, to find something, if it is really there.

Zz.
 
Last edited by a moderator:
Thank you.
Question solved.
 
Last edited:

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