Problems with electromagnet force and weak force

In summary, the electromagnetic force is mediated by photons, which have zero mass. So electromagnetic forces have infinite range. The weak force is mediated by three intermediate bosons, W+, W-and Z0 particles. These all have mass, the two W particles about 80GeV and the Z is about 90GeV.
  • #1
Rico L
37
0
The electromagnetic force is mediated by photons , which have 0 mass. so electromagnetic forces have infinite range. the weak force is mediated by three intermediate bosons, W+, W-and Z0 particles. these all have mass, the two W particles about 80GeV and the Z is about 90GeV.

the bit below is what i don't really get...

"in order to carry out the weak interaction from 1 particle to the next, the appropriate intermediate boson has to be created out of nothing at all." but why? and it says "using energy borrowed from the vacuum."

what does it mean by " borrow " the energy from the vacuum.


thanks ..
 
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  • #2
can you tells us where you find those quotes?

it seems that they steam from some introductory semi-quantum field theory explanation...
 
  • #3
oh.. i got it from a book ..
 
  • #4
it is from an article of "grand unified theories(GUTs)"

further reading: G.D.Coughlan and J.E Dodd, " the idea of particle physic; Yuval Ne'eman and Yoram Kirsch, " the particle hunters "

thats it ppl... sorry..
 
  • #5
Rico L said:
... the appropriate intermediate boson has to be created out of nothing at all. but why?

The mass/energy of the interacting particles isn't enough to create the 80 or 90 GeV boson, so the virtual boson borrows energy from the vacuum.


what does it mean by " borrow " the energy from the vacuum.


The uncertainty principle allows for energy to be 'borrowed' if it is paid-back within a (very) short time.

Neil
 
  • #6
captn said:
The uncertainty principle allows for energy to be 'borrowed' if it is paid-back within a (very) short time.

No you are miss using the HUP, firstly hup is a statistical relation for many event is QUantum Mechanics

secondly, you are progably referring to delta E delta t ~ hbar
which is NOT am uncertainty principle, there is not energy-time uncertainty relation!
 
  • #7
ansgar said:
secondly, you are progably referring to delta E delta t ~ hbar
which is NOT am uncertainty principle, there is not energy-time uncertainty relation!
Care to elaborate?
 

What is electromagnet force?

Electromagnet force is a fundamental force of nature that is responsible for the interactions between electrically charged particles. It is a combination of electric and magnetic forces.

What is weak force?

Weak force, also known as weak nuclear force, is one of the four fundamental forces of nature. It is responsible for the radioactive decay of subatomic particles and plays a crucial role in the nuclear reactions that power the sun.

What are some problems with electromagnet force?

Some problems with electromagnet force include the fact that it is much stronger than weak force, making it difficult to understand the interactions between the two forces. Additionally, the mass of the Higgs boson, a fundamental particle associated with the weak force, is much lower than predicted by theoretical models.

What are some problems with weak force?

One problem with weak force is that it is the weakest of the four fundamental forces, making it difficult to study and observe in experiments. Another issue is that it does not follow the same mathematical laws as the other three forces, making it challenging to incorporate into a unified theory of physics.

How are electromagnet force and weak force related?

Electromagnet force and weak force are related through the unified electroweak force, which describes the interactions between the two forces at extremely high energies. This theory was developed by combining the theories of electromagnetism and weak force, and it has been confirmed by experiments at particle accelerators.

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