Question on Kaons and its strangeness

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In summary, the property that makes Kaon a strange particle is its ability to decay into pions, resulting in a longer lifetime. This is not the case for pions due to their status as the lightest hadron. As for the exchange particle for strong nuclear force, while gluon is the fundamental particle, the effective force between nucleons in a nucleus can be better understood through pion exchange.
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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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FAQ: Question on Kaons and its strangeness

1. What are Kaons and what makes them unique?

Kaons are a type of subatomic particle that are classified as mesons. They are made up of a quark and an anti-quark, and their unique property is their "strangeness" which is a quantum number that differentiates them from other mesons.

2. How do Kaons differ from other particles?

Kaons have a longer lifespan compared to other particles, with an average decay time of about 0.12 nanoseconds. They also have a neutral charge, which sets them apart from other mesons.

3. What role do Kaons play in particle physics?

Kaons are important in the study of the Standard Model of particle physics as they provide evidence for the existence of the weak nuclear force and the theory of CP violation. They also play a role in understanding the decay of other particles.

4. How are Kaons produced and detected in experiments?

Kaons are produced through high energy collisions of other particles, such as protons and anti-protons, in particle accelerators. They are then detected using specialized detectors, such as bubble chambers, that can track the particles' decay products.

5. What is the significance of the Kaon's strangeness property?

The strangeness property of Kaons allows scientists to study the weak nuclear force and CP violation, which are important for understanding the behavior of subatomic particles. It also provides evidence for the existence of additional quark flavors, such as strange and charm, which are crucial for the development of the Standard Model of particle physics.

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