mean life and time axis

[AntonioLao]

Data taken from the particle data group at http://pdg.lbl.gov show the expected lifetime of some selected particles:

Proton – [math]1.6 \times 10^{25} [/math] years (independent of mode). [math]10^{31} or 10^{33}[/math] years (mode dependent).

Electron – [math] 4.2 \times 10^{24} [/math] years

Muon (fat electron) – [math] 2.19 \times 10^{-6} [/math] second

Tau (superfat electron) – [math] 2.9 \times 10^{-13} [/math] second

Photon – Stable (meaning it lives forever)

Quarks – unknown, since they cannot be isolated for measurements

Neutrinos – mean lifetimes are all weighted by their respective masses. Electron type is [math]7 \times 10^9 [/math] s/eV, muon type is 15.4 s/eV, tau type is not listed.

The numerous wide differences for mean lives of particles indicate the conceptual existence of various time axes having distinct angular distances and directions. Furthermore, analogous to the quantization of spin, the direction of time axis is also quantized into a positive and a negative. Nevertheless, there is a subtle connection between a particle’s lifetime and it’s mass.

[Guille]

You should correct.


Photons live forever if and only if they are not "perturbed".

Photons can be created and destroyed. If they are not destroyed, they will keep on living (you must accept that it is impossible for a photon to live even as much as the universe, for it will have a moment in which it will destroy crashing or something with an object, pure porbability).

[AntonioLao]

Photons live forever if and only if they are not "perturbed".

Explanation based on time axis indicates that even the photon time axis is not exactly 45º as what I originally thought. The more they interact, the less is this angle. My question is there something whose time axis is exactly 45º? Photon is close enough but no cigar.

[Guille]

Explanation based on time axis indicates that even the photon time axis is not exactly 45º as what I originally thought. The more they interact, the less is this angle. My question is there something whose time axis is exactly 45º? Photon is close enough but no cigar.

If there is, I can assure you it must not be just an object, it must be a sort of overall, of any kind.......

What about, the time axis of space? what is it? is it 45 exactly?

I don't mean the 90º difference that there is, I know that. I mean the time axis for space. It should be 45 degrees because it's eternal, right? Or not? If string theory is considered, space was "born" whiles the bi bang evolved.

[AntonioLao]

If our individual time axis is at 45º then the space axis is 135º from the universal time axis. The eternal property of space is attributed to the hypothesis that both the positive and negative space axes have equal absolute magnitude of length, mean curvature of space is zero. If they are not equal then one of the principal curvatures must be an absolute minimum or an absolute maximum.