Topology of charm decays. Help

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Discussion Overview

The discussion revolves around identifying charm decays in the context of the Na27 experiments conducted in the 1980s, specifically focusing on the topology of particle traces observed in bubble chamber films.

Discussion Character

  • Exploratory, Technical explanation, Homework-related

Main Points Raised

  • One participant seeks assistance in understanding how to identify charm decays based on the topology of traces in experimental data.
  • Another participant requests clarification on the specific paper being referenced for the analysis.
  • A later reply provides an example of decay topologies, mentioning that a V4 topology consists of four charged particles (two positive and two negative), while a C3 topology consists of three charged particles.

Areas of Agreement / Disagreement

The discussion does not appear to have reached a consensus, as participants are still clarifying details and seeking information.

Contextual Notes

Participants have not yet provided detailed definitions or explanations of the topologies mentioned, and there may be assumptions about prior knowledge of the Na27 experiments and the terminology used.

AnnieRT
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Topology of charm decays. Help!:)

Hello Everyone:)
It's my first post ever and I'm asking for help, sorry!

I have to know how to identify charm decays in the films of the Na27 experiments, done in the 80's. It was used a bubble chamber and a spectrometer...

In the paper it's said that the candidates to charm decays are analyzed based on the topology of their traces, but I'm finding very little information on it and can't quite figure it out...
Hope you can help me
Thanks**
:)
 
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What paper is this?
 


Thanks for the attention:)
Page 8...
 

Attachments



It's in the 2nd full paragraph on that page. For example, a V4 would have four charged particles, two positive, two negative, e.g. K3pi. A C3 would have three, e.g. K2pi.
 

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