Talk:W and Z bosons
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What is the antiparticles of the Z Boson? Or is it its own? I just don't know offhand what its spin is, and I'm not sure where I'd look it up - if it has non-zero spin, it must have a distinct antiparticle, as the neutron does (to the extent that the neutron is a particle, of course). Pakaran 18:13, 17 Dec 2003 (UTC)
Not quite; It has spin 1, yet it is its own antiparticle. Antiparticles have the same spin as ordinary particles. The photon is another example of a particle with non-zero spin that is its own antiparticle. The neutron is not a fundamental particle, as it is made of quarks, the quarks are charged, thus they are not their own antiparticles. The quarks give rise to properties such as a magnetic dipole moment, an electric dipole moment, and weak charge.
67.123.41.95 03:47, 4 Jan 2004 (UTC)
I modified the first paragraph to add information about antiparticles and the Z mass. Also to clarify that the Z is not a W.
User:Jeremy Henty 21:21, 19 Feb 2004 (UTC)
I noticed a coincidence that should be mentioned somewhere, perhaps here at the discussion area: the number of known beta decays of unstable nuclei has a huge increment just when the mass of the nucleus surpasses the mass of the W boson. Here is an histogram, built from the NUDAT database:
http://dftuz.unizar.es/~rivero/research/bhist.jpg
[edit] Revert of signed contribution
I can understand why User:131.111.8.102 reverted the additions of User:195.96.235.201 (who is evidently one Josiph Rangelov), but they actually seemed pretty informative. Here's a cut-and-paste, in the hopes that future Wikipedians will know how to incorporate them into the article:
As you can understand, all elementary particles are built from one or two point-like elementary charges, whish together with neutral vacuum are moving in self-consistent way.As a result of this motion the neutral vacuum create vertex (with sfpherical symmetry in case of neutrino and with cylindric symmetry (discus)in case of qwarkino. When some particle transforms in onother, then its point-like electric charge must to change own motion. Therefore in this moment of time the point-like charge excicts as mediate vector boson, where the point-like charges is moving in circular oscilattions, which averaged density have form of nearly flat discuss.
The dirrection of this discus in space is always in direction of motion for one electric charge and in opposite of direction of motion for opposite electric charge. Therefore they have spin a whole number of h-bar (+1, -1) Therefore in dependence of electric charge the mediate W bosons can interacted only with neutrino or antineutrino and with right or left quarkinos in order to obtain spin value of half of h-bar. The neutral mediate bosns have two opposite electric charges which are moving along two opposite circular oscillations and therefote their wholo spin have zero value. Therefore mediate neutral Z boson may interacts by two neutrins and by left and right qwuarkinos.
There is no any relation between mediate W and Z bosons and photons, as photons is only a polarized solitary needle oscillations of neutral vacuum without electric charge. Therefore while mediate vector bozons W ana Z have mass at rest, the photons have no mass at rest. Josiph Rangelov rangelov@issp.bas.bg or rangelov@pronto.phys.bas.bg
I left a message on his talk page; I do hope he contributes further. Twiddling my thumbs expectantly, --Ardonik 08:31, Jul 21, 2004 (UTC)
- He also seems to be registered as User:Rangelov@issp.bas.bg (See User talk:Rangelov@issp.bas.bg) and has made these contributions without logging in. I suspect that they could (with appropriate editing) be helpful additions but, as you say, for understandable reasons, they have mostly been reverted. Some recent amendments to electron are still there but I expect they will go soon too. -- ALoan (Talk) 11:10, 21 Jul 2004 (UTC)
These paragraphs added by User:195.96.235.201 are not just poor English, but also incorrect physics. I have not checked all the articles modified by him, but I did look at his change to the Higgs Boson, and this also made no sense. --131.111.8.102 14:12, 21 Jul 2004 (GMT)
[edit] W and Z masses
I updated the W boson mass to the 2006 PDG value: MW = 80.403 +- 0.029 GeV/c^2. I also fixed a typo in the uncertainty on the Z boson mass: MZ = 91.1876 +- 0.0021 GeV/c^2 (previous was +- 0.021). The reference for these numbers is W.-M. Yao et al., J. Phys. G 33, 1 (2006). I don't know how to add citations to journal articles yet; could someone please put this in in place of the citation needed tags? HEL 17:17, 1 October 2006 (UTC)
[edit] Origin of Z boson name?
The Z particle was semi-humorously given its name because it was said to be the last particle to need discovery. Another explanation is that the Z particle derives its name from the fact that it has zero electric charge. I've never heard either of these explanations before. Can anyone provide a reference? HEL 17:23, 1 October 2006 (UTC)
