Weak interaction: what are these 246 GeV vacuum expectation value?

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francoisbelfort@yahoo.fr - 03 Jan 2007 22:34 GMT

It is often writtem that the weak interaction has a
vacuum expectation value of 246 GeV/c^2. It is
also called the vacuum condensation energy of the Higgs
field. But what exactly is this energy?

Is it an energy density - if so: what is the underlying volume?

Is it something else?

Can anybody explain this to a novice?

FB

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Autymn D. C. - 04 Jan 2007 04:20 GMT

> It is often writtem that the weak interaction has a
> vacuum expectation value of 246 GeV/c^2. It is
> also called the vacuum condensation energy of the Higgs
> field. But what exactly is this energy?

Blah!, their blurbs wouldn't tell me either...

The mass looks like a compound of ZWW. Their bonds would make a
greatter deficit than the leftover 4 GeV, and the gap would be, I
guess, with every fundamental particul stuffed in there.

-Aut

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Fred Diether - 04 Jan 2007 05:48 GMT

> It is often writtem that the weak interaction has a
> vacuum expectation value of 246 GeV/c^2.

Not sure where you got the /c^2 from. ??? That makes it a mass instead
of energy. Got a reference where you got that from?

> It is
> also called the vacuum condensation energy of the Higgs
[quoted text clipped - 5 lines]
>
> Can anybody explain this to a novice?

The vev = 246 GeV is derived from the Fermi Coupling Constant of weak
interactions. It is not an energy density.

http://en.wikipedia.org/wiki/Fermi's_interaction
G_F/(hbar*c)^3 = 1/(sqrt(2)(vev)^2)

Solve and get vev ~= 246.22 GeV

Now the wiki site has G_F dependent on g, the weak coupling constant,
and the mass of the W boson, so you can say that the vev is also
dependent on those. Caution: the stuff on the wiki page is in natural
units of hbar = c = 1.

FrediFizzx

Quantum Vacuum Charge papers;
http://www.vacuum-physics.com/QVC/quantum_vacuum_charge.pdf
or postscript
http://www.vacuum-physics.com/QVC/quantum_vacuum_charge.ps
http://www.arxiv.org/abs/physics/0601110
http://www.vacuum-physics.com

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Natural Science Forum / Physics / Particle Physics / January 2007

Weak interaction: what are these 246 GeV vacuum expectation value?