# Tag Info

## New answers tagged particles

2

This experiment is not possible, i.e. you cannot make a glass of only protons or a glass of only electrons because of the electromagnetic repulsion, they cannot be a liquid. A liquid requires chemistry They can be a gas though, and the LHC is creating a type of proton gas to get the protons for the beams. To get hydrogen gas into a plasma phase takes ...

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A higgs boson is created at an accelerator just like any other particle, by converting energy to mass, according to the famous equation $$E = mc^2$$ If you take the LHC as example, then protons are accelerated to nearly light speed, having enough energy to create particles as heavy as the higgs. For a particle to decay it needs phase-space (i.e. the ...

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If the particles are all the same (we don't need to invoke indistinguishability at that stage I think), then there is no loss of information since the permutation of two particles in a reduced distribution function will ask exactly the same question as before the permutation probability-wise. Note that usually, reduced distribution functions are defined ...

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an interesting question, no doubts. Indeed most of the time we rely on conservation of quantum numbers but there is an underlying structure to this. In principle changing a particle with an antiparticle amounts to a CP transformation. This is a symmetry for electromagnetic and (supposedly) strong interactions. Because of this, it doesn't really matter what ...

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It started with conservation of quantum numbers, from baryon number when we did not know about quarks, to lepton number, when we discovered the positron.For the neutrino momentum and energy conservation played a role too, since it is only seen as a missing mass. In time the symmetries in the assignments of the quantum numbers became more and more evident ...

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