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Particle physics problem

  1. Dec 14, 2007 #1
    1. The problem statement, all variables and given/known data

    A hadron has the quark content [tex]\ u [/tex][tex]\ d^- [/tex].Find the baryaon number,charge,spin and strangeness of this hadron.Can you identify this hadron?

    2. Relevant equations
    3. The attempt at a solution

    baryon number=(1/3)+(-1/3)=0 [u is particle but d bar is antiparticle]

    charge= +(2/3)+(1/3)= +1 [dbar is the antiparticle of d,whose charge is -(1/3)]

    Spin=0 [as the hadron is a meson]

    Strangeness= 0

    The hadron is a positive pion.

    Please check if it is correct.
    Last edited: Dec 14, 2007
  2. jcsd
  3. Dec 14, 2007 #2


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    Science Advisor

    You're not given enough info to get the spin. The rho+ has the same quark content and has spin 1.
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