1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Feymann diagram help

  1. Dec 10, 2009 #1
    1. The problem statement, all variables and given/known data
    B+ --> Do + u+ + Vu

    B and D are mesons and u is a muon and Vu its corrosponding neutrino.
    B composition u b*
    Do composition c u*

    Where * denotes the antiquark....

    3. The attempt at a solution

    I can do most diagrams, but this one is killing me!! I have looked up the Cern branching ratios and have seen that this is possible but can anyone point me in the right direction for drawing it?

    I have the D+ going to a W+ and Z boson, the W+ gives the Muon and neutrino and the Z the Do, but the Z cant couple to anti-u and c quarks....therefore my problem!

  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted