- #1
- 665
- 2
The tachyon has a spin of 0, does any other particle have a spin of 0?
What is a "scalar field particle"?Any scalar field particle, like the Higgs, has spin zero. Of course, we've not observed one (yet) so these are hypothetical particles.
I have trouble with this. First, nobody has seen a tachyon. Second, a spin-1/2 or spin-1 tachyon is no more and no less likely than a spin-0 tachyon.The tachyon has a spin of 0
This I think refers to the tachyon "problem" in string theories, which is the lowest angular momentum particle along the trajectory (so is probably a scalarI have trouble with this. First, nobody has seen a tachyon. Second, a spin-1/2 or spin-1 tachyon is no more and no less likely than a spin-0 tachyon.
This may be a stupid question, but would a spin 1/2 tachyon break the Lorentz symmetry?I have trouble with this. First, nobody has seen a tachyon. Second, a spin-1/2 or spin-1 tachyon is no more and no less likely than a spin-0 tachyon.
Maybe *I* am the one not thinking but I don't see that a tachyon breaks Lorentz invariance. They may give problems with causality and other stuff but I don't think they break Lorentz invariance (if they do, in what way?) For example, if they travel faster than c in one frame, that will be the case in all frames. Maybe I am missing something obvious. I have never worked much with theories with tachyons but I thougth they were always written in a Lorentz inavraint form.Ack. Yes. Stupid questions. Tachyons break Lorentz invariance anyway.
Dammit Ben...THINK!
http://en.wikipedia.org/wiki/Scalar_field_(quantum_field_theory)What is a "scalar field particle"?