Any weakly right-handed protons?

I expect you've heard about how the proton's weak charge has been measured directly:



http://www.sci-news.com/physics/scie...ton-01391.html



Their findings so far are completely consistent with the standard model apparently.



So protons (and electrons) on Earth have now been directly measured to be weakly left-handed.



But could there be a sector of particles with weakly right-handed electrons and protons that would give opposite results?

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