Wow. Thank you for that information. I'll be honest and say it wasn't easy to find much info about some of them, and in other areas it got complicated for me. 😅

then two extra parameters (the so-called Majorana phases) are needed.

Yep, no clue about this, thank you so much for that info! I only knew that there is 1 CP-Violation phase which has not even been measured yet.

Often we prefer to rely on the Fermi constant instead of the W boson mass as an input, the W-boson mass being then a derived parameter. The reason is that the Z-boson mass, the Fermi constant and the electromagnetic structure constant consist of the set of inputs with the smallest experimental errors.

Noted! I didn't know it was the prefered method, I opted for their inclusion that way as I saw it simpler.

Finally, I must say that I disagree with the title of the post (sorry about this ;). All masses that you mentioned are dimensional parameters, and not dimensionless ones.

I can edit the title if needed :p but care to elaborate on this a bit?

I couldn't find much about this, but I thought they were non-dimensionalized relative to a scale set by Einstein's gravitational constant.
I also read that 15 coupling constants to the higgs field? How would that work for the Higgs boson??

But yeah, you just ruined my whole article. Hahaha ❤

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In fact, this whole topic deserves a much better detailed post (Which I'm unable to deliver :p) but it would be really hard to keep it simple, as it would go in all directions.

As always, your valuable input is much appreciated!

Cheers!