Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Measuring quark colour operator

  1. Dec 16, 2014 #1
    What is the explicit 3x3 matrix operator which measures the colour of a quark? Essentially what I want to know is what is the analogue of ##S^z## for the measuring of spin.
  2. jcsd
  3. Dec 16, 2014 #2
    The colour charges are not distinguishable, it is therefore not possible to measure "colour projections" in the same way that one could measure spin projections with a stern gerlach experiment - is this what you are asking?
  4. Dec 16, 2014 #3


    User Avatar
    Gold Member

    the (mathematical) analogue to Sz are the 2 diagonal (commute with all the rest matrices in the repr) Gellmann matrices, but I don't think that's what you asked...
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Measuring quark colour Date
A Measurements of the Self-Interaction of the Higgs Nov 23, 2017
B The Latest Higgs Boson Mass Measurements Jul 13, 2017
How can we measure the mass of quarks? Jan 30, 2013