Despina Hatzifotiadou: ALICE Master Class 3 - Theory: strangeness enhancement; centrality of lead-lead collisions; efficiency, yield, background etc

Europe/Zurich
513-1-024 (CERN)

513-1-024

CERN

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Description

This is the 3rd of 4 short online videos. It explains what is: strangeness enhancement; centrality of lead-lead collisions; efficiency, yield, background etc. More details and related links on this indico event page.

In more detail: What is Physics Master Classes

Students after morning lectures, run programmes in the afternoon to do measurements. These tutorials are about how to use the software required to do these measurements.

Background info and examples  Looking for strange particles with ALICE http://aliceinfo.cern.ch/Public/MasterCL/MasterClassWebpage.html

  1. Introduction to first part of the exercise : what are strange particles, V0 decays, invariant mass.
  2. Demonstration of the software for the 1st part of the exercise - visual identification of V0s
  3. Introduction to second part of the exercise : strangeness enhancement; centrality of lead-lead collisions; explanation of efficiency, yield, background etc
  4. Demonstration of the software for the 2nd part of the exercise - invariant mass spectra - background subtraction and calculation of number of Kaons, Lambdas, antiLambdas.

This use case was present in the original e-learning project description http://it-student-projects.web.cern.ch/projects/e-learning-modules

This recording was done with quicktime on Despina's Mac.

If you have a problem to display this video please write to e-learning dot support at CERN with your OS and browser name/version.

 

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