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

If neutrinos have mass

  1. May 10, 2005 #1
    If neutrinos have mass, can "right-handed" and a "left-handed" change
    to eachother? Why we can only find left-handed ones?

    Thank you.
    Wang Yi
  2. jcsd
  3. May 10, 2005 #2


    User Avatar
    Science Advisor
    Homework Helper

    Hold on,the antineutrinos are very well "right-handed".I think it's safe to say that explaining preferential chirality of neutrinos (& their antiparticles) is still an enigma within the SM of particles & interactions.

  4. May 10, 2005 #3

    Meir Achuz

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    It is true that a LT can change the helicity of a neutrino with mass (which is usually negative) to positive. The designation LH or RH for particles is used to describe their weak interaction [(V-A) or (V+A)]. In this sense, even a neutrino with mass is LH. The handedness of leptons and quarks is built into the group structure of the Standard Model.
  5. May 10, 2005 #4
    I see. Thank you.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?