Least energy required for creation of a fundamental particle

In summary, the least energy required to create a fundamental particle of mass m depends on the production process and the definition of "energy required". For fermions, an anti-fermion must always be created as well, while for bosons, it is not necessary but can still occur due to conservation of energy and momentum. Photons have no minimum energy requirement, while Z-bosons and Higgs bosons require mc^2. The creation of a single electron may also require energy due to conservation of quantum numbers. The production of the Higgs boson does not require a pair, as it can be created from the top quark loop which is the result of two pi gluons fusing.
  • #1
Ezio3.1415
159
1
What's the least energy required to create a fundamental particle of mass m,what would be ur answer? mc^2 or 2mc^2

For fermions,we always have to create anti fermion too... Is it true for bosons too... Say I want to create any boson... Would I have to create 2 of it?
 
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  • #2
Yes - it is not a fermion thing, but particle + antiparticle pair.
 
  • #3
But bosons doesn't have antiparticle... Why are they created in pairs then? Is that why those who doesn't have anti particles are said to be their own anti particle?
 
  • #4
Ezio3.1415 said:
But bosons doesn't have antiparticle... Why are they created in pairs then? Is that why those who doesn't have anti particles are said to be their own anti particle?

One important consideration - conservation of energy and conservation of momentum both must hold.
 
  • #5
You don't have to do pair production, not even for fermions. But you have to conserve all conserved quantum numbers - if you produce a single quark or lepton, something else has to change which might need (or release!) energy. But that is not specific for fermions, the same is true for the W boson.

Therefore: It depends on the production process and your definition of "energy required".

Photons have no minimal requirement, Z-bosons and Higgs bosons require mc^2.
What about the electron? The decay of a neutron produces one, and releases additional energy. Did that require some energy, and if so, how much?
 
  • #6
"One important consideration - conservation of energy and conservation of momentum both must hold."

Yeah I should keep that in mind... not to forget conservation of charge...

The ques should have some elaboration... However,higgs boson is created alone from the top quark loop which is two pi gluon's fusion's result... That means its creation doesn't need to be in pair...
 

1. What is the concept of least energy required for creation of a fundamental particle?

The concept of least energy required for creation of a fundamental particle refers to the minimum amount of energy needed to create a single particle from nothing. This concept is based on the fundamental principles of quantum mechanics and the idea that energy is required for the formation of particles.

2. How is the least energy required for creation of a fundamental particle determined?

The least energy required for creation of a fundamental particle is determined through various theoretical calculations and experiments. Scientists use mathematical equations and models to predict the amount of energy needed for particle creation, and these predictions are then tested through experiments such as particle colliders.

3. Why is the concept of least energy required for creation of a fundamental particle important?

The concept of least energy required for creation of a fundamental particle is important because it helps us understand the fundamental building blocks of the universe. It also plays a crucial role in theories such as the Standard Model of particle physics and can help us better understand the origins of the universe.

4. Can the least energy required for creation of a fundamental particle ever be zero?

No, the least energy required for creation of a fundamental particle cannot be zero. According to the laws of thermodynamics, energy cannot be created or destroyed, only transferred or converted. Therefore, even the creation of a single particle requires some amount of energy.

5. How does the least energy required for creation of a fundamental particle relate to the concept of the Higgs field?

The Higgs field is a theoretical field that is thought to give particles their mass. The least energy required for creation of a fundamental particle is directly related to the strength of the Higgs field, as particles with more mass require more energy to create. In this way, the concept of the Higgs field and the least energy required for creation of a fundamental particle are interconnected in our understanding of the fundamental particles and forces of the universe.

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