Mass of Higgs & Relativistic: Is it Comprised of Both?

In summary, the mass of a person is composed of kinetic and Higgs masses. The kinetic component is easy to understand- any energy that is confined looks like mass. The Higgs mass is what gives the quarks and leptons a little mass, and is theorized to be around 1-1.6% of a person's mass.
  • #1
nitsuj
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In another thread I asked the question if my mass is comprised of "Higgs Mass" and "Kinetic mass".

Drakkith was nice enough to reply best he could, but wasn't certain.



So yea, that's what I am wondering. Is my mass comprised of higgs and kinetic?
 
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  • #2
Yes.

:smile:

The kinetic component is really easy to understand. Basically any energy that is confined looks like mass.

Eg, say you had a box with a lot of light inside it bouncing off the walls, it would appear a little heavier. I believe it would be essentially indistinguishable from a little gas in the box, as regards its gravity, inertia and so on (I am assuming perfect reflection off the walls - perhaps a superconductor might achieve this?).

Another type of confined energy is the kinetic energy of quarks bound by massless gluons in neutrons and protons, and as well as that all massive particles acquire what appears to be extra mass when they have some sort of other energy. For example, you are slightly heavier than if you were a lower temperature.

What we consider mass depends on the resolution we look at really - you have a mass, the electrons and nuclei in you have a different total mass, the nucleons in the nuclei has masses that are a bit different to the nuclei themselves, and then the quarks in nucleons have masses that are way less than the nucleons they make. All the discrepancies are other sorts of energy (energy in bound particles being bound in general, I suppose).

So the role of Higgs is to give the quarks and leptons a little mass in this picture.
 
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  • #3
Ha, what's the ratio?

(assuming it's only these two forms, only ones I am aware of)
 
  • #4
nitsuj said:
Ha, what's the ratio?

(assuming it's only these two forms, only ones I am aware of)

You could work it out. What you would need to do is work out how many up quarks, down quarks and electrons there are in your body (start from your mass, the fractions of each element, and how many neutrons and protons there are in the common isotopes)

But the simple answer is that most of it is kinetic, simply because electrons are very light, and up and down quarks are a lot lighter than nucleons (look up their masses and those of neutrons and protons to see).

It will seem a lot clearer if you do some of these calculations, I think. Well, except there is quite a lot of uncertainty about quark rest masses.

[Note: remember a proton is two up quarks and a down quark. A neutron is two down quarks and an up quark]
 
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  • #5
nitsuj, I am sure you have done this calculation now :smile:, but I will give a rough answer for comparison.

Firstly, most of your mass is neutrons and protons. Each proton has an electron to go with it. If you added all these weights up it would be quite close to your total weight (binding between nuceons and in atoms and molecules cause corrections). I won't bother doing these corrections, as there are far bigger uncertainties later.

Secondly there are about equal numbers of protons and neutrons in a human (again, given other uncertainties, I will not try to be more precise). So the numbers of electrons, neutrons and protons in a human are approximately equal.

Masses of neutron and proton are 940 MeV and 938 MeV respectively.

Mass of up and down quarks are 1.7-3.3 MeV and 4.1-5.8 MeV respectively. Note the large uncertainty.

Mass of electron is about 0.5 MeV

To get the answer with these assumptions, we need to compare mass(neutron + proton + electron) to mass(3 up quarks + 3 down quarks + electron)

The first is 940+938+0.5, which is about 1879 MeV. The latter is about 18-28 MeV.

Hence I infer that 1-1.6% of your mass is due to the Higgs mechanism, the rest is apparently due mainly to gluons. This is entirely different to the situation with atoms and the electromagnetic force - binding of nuclei and electrons leads to a small reduction in mass due to the binding energy caused by virtual photons.
 
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  • #6
yea I laughed when suggested to calculate it.

Thanks for sorting it out.

So most of my mass is from the kinetic energy that gluons create? Do gluons hold the quarks together? Or is it what holds the proton and neutron together?
 
  • #7
Yes, it's gluons that hold quarks together to form neutrons and protons, but it's a lot more complex than the way photons hold electrons and nuclei together. In the later case, there are no photons with non-negative energy involved, so the net mass is less than the sum of the parts.

I can't say I understand the details at all well, but there must be a lot of real gluons with positive energy inside each nucleon, and it is this that causes the rest mass of nucleons to be so high.
 
  • #8
Elroch said:
In the later case, there are no photons with non-negative energy involved, so the net mass is less than the sum of the parts.

Wow, that's bizzare, so many interesting points to consider with this stuff.
 

What is the Higgs mass and how is it measured?

The Higgs mass is a fundamental property of the Higgs boson, which is a particle that gives other particles their mass. It is measured using particle accelerators such as the Large Hadron Collider (LHC) at CERN.

Is the Higgs mass comprised of both mass and energy?

Yes, according to Einstein's theory of relativity, mass and energy are interchangeable. The Higgs boson is a manifestation of this concept, as it is both a particle with mass and a field that carries energy.

How does the Higgs mass relate to the theory of relativity?

The Higgs boson is a key component of the Standard Model of particle physics, which is based on the principles of relativity. The Higgs field, which gives particles their mass, is a manifestation of the theory of relativity.

What is the significance of the Higgs mass in the study of the universe?

The Higgs boson and its mass are crucial to our understanding of the universe. Its discovery in 2012 confirmed the existence of the Higgs field and helped explain how particles acquire mass, which is essential for the formation of matter in the universe.

How is the Higgs mass related to the concept of the Higgs field?

The Higgs mass is directly related to the strength of the Higgs field. The higher the Higgs mass, the stronger the Higgs field, and the more mass particles will have. This relationship is described by the Higgs mechanism, which is a fundamental concept in particle physics.

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