Is Z0 Particle Real Without Flavor-Changing Interactions?

In summary, the existence of the Z0 particle can still be determined even if there are no flavor changing interactions. This is because the decay of the Z0 particle into particle-antiparticle pairs can still be observed. The most effective way to produce Z0 is by colliding electrons with positrons at the Z0 resonance. Additionally, flavor-changing Z interactions allow for the decay of the Z0 particle into different types of particles, but this has not been observed. The conservation of charge is always maintained in these interactions.
  • #1
AdvaitDhingra
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If there are no flavor changing z0 weak interactions, how do we even know that the particle exists? I thought that we could only tell which particle was exchanged by the particles it decays into. Is this wrong?
 
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  • #2
How would the absence of flavour changing Z0 interactions preclude the knowledge of its existence? You will still see the decays to particle-antiparticle pairs just the same. The cleanest way of producing Z0 is to collide electrons with positrons at the Z0 resonance.
 
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  • #3
Orodruin said:
How would the absence of flavour changing Z0 interactions preclude the knowledge of its existence? You will still see the decays to particle-antiparticle pairs just the same. The cleanest way of producing Z0 is to collide electrons with positrons at the Z0 resonance.
Oh ok. So a z0 Boson interaction is one where charge is conserved? (since the z0 carries no charge)
 
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  • #4
Do you see a peak (Z) or not (no Z)?

1618312813823.png
 
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  • #5
  • #6
Charge is always conserved.

Flavor-changing Z interactions would allow e.g. electron plus antimuon to Z, or Z to these two particles. We don't observe that decay (experimental upper limit is ~10-6), but of course we see the flavor-conserving electron+positron->Z production (that's what we can actually collide in colliders) and the equally flavor-conserving decays to quark plus matching antiquark.
 
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Related to Is Z0 Particle Real Without Flavor-Changing Interactions?

1. Is the Z0 particle a real particle or just a theoretical concept?

The Z0 particle is a real particle that has been observed in experiments and is an essential component of the Standard Model of particle physics.

2. How does the Z0 particle interact with other particles?

The Z0 particle interacts with other particles through the weak nuclear force, which is responsible for processes such as radioactive decay.

3. Does the Z0 particle have mass?

Yes, the Z0 particle has a mass of around 91 GeV/c², which is approximately 91 times the mass of a proton.

4. Can the Z0 particle change flavors?

No, the Z0 particle does not have flavor-changing interactions. This means that it does not change into different types of particles, such as changing from an electron to a muon.

5. What is the significance of the Z0 particle in particle physics?

The Z0 particle plays a crucial role in the Standard Model of particle physics, as it helps explain the behavior of the weak nuclear force and provides evidence for the existence of the Higgs boson.

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