[gus_massa]

Chirality is a real property of (most) elementary particles. For example the electron with left chirality has a weak hypercharge of -1, but the electron with right chirality has a weak hypercharge of 0. https://en.wikipedia.org/wiki/Weak_hypercharge#Definition In some sense, they are very different particles. Also, only the left version interact with the weak interaction.

[ziofill]

Ah, then I was thinking about helicity

[gus_massa]

I expected the article to explain "helicity" and then say "and chirality is almost the same (for fast particles)", that is good enough for not specialist. There are a few graphics here and there that show helicity, but that paragraph in the text is totally unintelligible and the only conclusion is that there is something with right and left.