Recent content by mur79

  1. M

    Graduate Pion decay in electron and neutrino

    Sorry but I don't understand why the latex don't work... the decay is pi- -> e- anti-nu(e) the factor is: 1-v/c and I don't understand what are v and c... and why that quantity is equal to: (m_e)^2 / [(m_pi)^2 + (m_e)^2] Thank you Ciccio
  2. M

    Graduate Pion decay in electron and neutrino

    Hi, I have a question about this decay: \pi^- \rightarrow e^- \overline{\nu_e} there is a factor: 1 - \frac{v_e}{c} what are these values, v_e,c, and why this quantity is equal to: \frac{m^2_e}{m^2_\pi + m^2_e}? Thank you Ciccio