Question on Kaons and its strangeness

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SUMMARY

The discussion centers on the properties of Kaons, specifically their classification as strange particles due to their long decay times compared to pions. While both Kaons and pions have extended lifetimes, the Kaon's ability to decay into pions contributes to its designation as a strange particle. Additionally, the conversation clarifies that gluons are the fundamental exchange particles for the strong nuclear force, while pions serve as effective mediators in nucleon interactions within a nucleus.

PREREQUISITES
  • Understanding of particle physics terminology, specifically "Kaon" and "pion"
  • Knowledge of decay processes in subatomic particles
  • Familiarity with strong nuclear force and its mediators
  • Basic concepts of hadron classification
NEXT STEPS
  • Research the properties and decay mechanisms of Kaons and pions
  • Study the role of gluons in the strong nuclear force
  • Explore the concept of hadron classification and its implications
  • Investigate the effective force models in nuclear physics, focusing on pion exchange
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Students and professionals in particle physics, physicists studying strong interactions, and anyone interested in the classification and behavior of subatomic particles.

Gajan1234
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What is the property of Kaon that make it a strange particle. Other than it takes long to decay but this is same for pion, then why don't we call it a strange particle?


And also what is the exchange particle for strong nuclear force. I thought it Pion, but it is gluon.
 
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The pion cannot decay via the strong interaction because it is the lightest hadron, so its long lifetime was well understood. The kaon can decay to pions, so its long lifetime was strange.
Gajan1234 said:
And also what is the exchange particle for strong nuclear force. I thought it Pion, but it is gluon.
The gluon is the fundamental exchange particle, but if you want to consider the effective force between (color-neutral) nucleons in a nucleus, pion exchange is a better model.
 
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