Why can't the W boson decay into a top quark?

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In summary, the W boson cannot decay into the heavier top mass because energy conservation would be violated. However, there is a process in the Standard Model where a neutrino with high energy can interact with an electron and potentially create a top quark. However, this should not be viewed as the W decaying, but rather the neutrino tunneling through the W into a top quark and other particles.
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jc09
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Just wondering if anyone could tell me why the W boson cannot decay into the heavier top mass.
 
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  • #2
Because it's heavier. Energy wouldn't be conserved if light objects could decay to heavy ones.
 
  • #3
If a neutrino from outer space with energy $10^20eV$ have a elastic scattering with electron...do it have higher possibility for the W-propagator to decay into top quark?
 
  • #4
There is indeed a process similar to what you're describing that is present in the SM, but you shouldn't think about it as the W decaying so much as the electron-neutrino tunneling through a W into a top and whatever else would be present (bbar?).
 

1. What is W not decaying to top quark?

The W boson is a fundamental particle in the Standard Model of particle physics. It is known to decay into various particles, including the top quark. However, there are rare cases where the W boson decays into other particles, such as a bottom quark and a strange antiquark, instead of the top quark.

2. Why does W not decay to top quark?

The decay of the W boson is governed by the laws of quantum mechanics and the Standard Model. The probability of a particle decaying into a specific set of particles is determined by its mass, energy, and other properties. In the case of the W boson, the decay into a top quark is less likely than other possible decays due to the mass difference between the particles.

3. How is the decay of W not to top quark observed?

Scientists observe the decay of the W boson using particle accelerators, such as the Large Hadron Collider (LHC) at CERN. By colliding particles at high energies, scientists can recreate the conditions of the early universe and study the interactions of particles. The decay of the W boson into different particles can be detected through the energy and momentum of the particles produced in the collision.

4. What are the implications of W not decaying to top quark?

The decay of the W boson into top quark is an important process in the Standard Model and has been extensively studied. However, studying the rare cases where the W boson decays into other particles, such as the bottom quark and strange antiquark, can provide valuable insights into the fundamental forces and interactions of particles. It also allows scientists to test the predictions of the Standard Model and potentially discover new physics beyond it.

5. Can W not decaying to top quark affect our everyday lives?

The study of particle physics and the decay of the W boson into different particles may not have direct implications for our daily lives. However, the technologies and techniques developed for these studies have led to advancements in various fields, such as medical imaging and cancer treatment. Additionally, a better understanding of the fundamental particles and forces in the universe can potentially lead to new discoveries and technologies in the future.

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