Higgs Particle. Where are you now?

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    Higgs Particle
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Discussion Overview

The discussion centers around the nature of the Higgs boson and its relationship with mass, the Higgs field, and the concept of virtual particles. Participants explore whether Higgs particles exist in the universe today, their role in mass generation, and the implications of virtual particles in quantum field theory.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants propose that the Higgs boson existed only briefly after the Big Bang and question whether we are surrounded by Higgs particles currently.
  • Others argue that while the Higgs field is omnipresent, it does not imply the existence of Higgs particles at all times.
  • A participant compares the Higgs field to a magnetic field, suggesting that just as a magnet does not emit photons unless interacting with another magnet, the Higgs field may not produce detectable Higgs particles.
  • There is a question about whether any non-virtual Higgs particles exist today, aside from those produced in particle accelerators like the LHC.
  • Some participants mention that cosmic rays can produce Higgs bosons, but the quantity is small.
  • Discussion includes the nature of virtual particles, with some asserting that they are merely mathematical constructs, while others suggest they may have a form of reality.
  • There is a contemplation on the complexity of the universe and a hypothetical desire for a simpler model of particle physics.

Areas of Agreement / Disagreement

Participants express differing views on the existence of non-virtual Higgs particles and the interpretation of virtual particles. The discussion remains unresolved regarding the nature and implications of these concepts.

Contextual Notes

Limitations include the dependence on definitions of virtual particles and the unresolved nature of how mass is acquired through the Higgs mechanism.

esmeralda4
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So the LHC confirms strong evidence for a Higgs like Boson.

But does this mean that the boson only existed for a tiny fraction of a second at the begginning of time and give other particles their mass? Or are we all surrounded by Higgs particles all the time?

Many thanks
 
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hi esmeralda4! :smile:

there's a higgs field everywhere all time

that doesn't mean there's any higgs particles

compare it with a magnet: it has an electromagnetic field, but it doesn't give off any actual photons :wink:

(ok, it does radiate infrared photons, but that's only because of its temperature, nothing to do with being a magnet)
 
Thanks for the reply.

So are there any Higgs Bosons zipping around or have they all decayed at the beginning of the universe?

With the magnet comparison doesn't the magnet give of exchange photons when it is near another magnet or magnetic material? Or have I made that up?

What conditions are needed for a particle in the Higgs Field to emit or receive Higgs Particles?
 
esmeralda4 said:
With the magnet comparison doesn't the magnet give of exchange photons when it is near another magnet or magnetic material? Or have I made that up?

those are virtual photons

virtual photons are a maths thing, they make up the electromagnetic quantum field

in the same way, virtual higgs particles make up the higgs quantum field

but they're not really there (and you certainly couldn't detect them in any way) :smile:
 
Ok, just been reading about virtual particles. Just how complicated does the Universe want to be anyway? If I was to design a Universe I would probably have, like, two particles and maybe only one force and they would all be visible to the naked eye. And I would have non of this virtual, quantum, uncertainty rubbish...

Anyway,

Sorry to repeat my question but are there any non virtual Higgs particles existing in the Universe today (with the exception of any created at the LHC)? Basically has everything now got it's mass or is everything still and is always getting it from the Higgs mechanism and non virtual Higgs Bosons?
 
QM_is_actually_a_hardware_problem.png



:smile:
 
esmeralda4 said:
Ok, just been reading about virtual particles. Just how complicated does the Universe want to be anyway? If I was to design a Universe I would probably have, like, two particles and maybe only one force and they would all be visible to the naked eye. And I would have non of this virtual, quantum, uncertainty rubbish...
I would expect that this simple universe cannot produce any life. And no eye, of course.

Sorry to repeat my question but are there any non virtual Higgs particles existing in the Universe today (with the exception of any created at the LHC)?
Some Higgs bosons are produced when cosmic rays hit anything, but the total number is quite small.

Basically has everything now got it's mass or is everything still and is always getting it from the Higgs mechanism and non virtual Higgs Bosons?
Every particle [which gets a mass via the Higgs mechanism] interacts with the Higgs field all the time, which can be described as the interaction with virtual Higgs particles.
 
tiny-tim said:
those are virtual photons

virtual photons are a maths thing, they make up the electromagnetic quantum field

in the same way, virtual higgs particles make up the higgs quantum field

but they're not really there (and you certainly couldn't detect them in any way) :smile:

That's not necessarily true. Virtual particles are a mathematical structures used as approximations in perturbation theory but that doesn't necessarily mean they aren't "real". Whether or not our mathematics sheds any light on reality is the grit of this question.
 

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