Recent content by lLehner95

  1. lLehner95

    Why is eta meson decay into 3 neutral pions forbidden?

    Thank you! However, we haven't studied G-parity yet, and our teacher wants us to solve the problem using isospin and boson statistics.
  2. lLehner95

    Why is eta meson decay into 3 neutral pions forbidden?

    I started combining 2 pions: ##|\pi ^{0},\pi ^{0} >=\sqrt{\frac{2}{3}}|2,0>-\sqrt{\frac{1}{3}}|0,0>## What should i do now? Should i continue combining the third pion or can i already say that it's forbidden? If yes, why? Is it because the state antisymmetric, impossible for two bosons?
  3. lLehner95

    Find the photon energy in the center of mass frame and vice versa

    Yes. I wanted to find the most general transformations for energy and momentum of particles between the two reference frames. The energies and momenta are referred to a particle in a specific reference frame. I tried to solve some exercises and i got confused a little with signs. Then, solving...
  4. lLehner95

    Find the photon energy in the center of mass frame and vice versa

    I'm using these equations to solve problems about collisions in particle physics: switching from the laboratory frame to the center of mass frame and viceversa.
  5. lLehner95

    Find the photon energy in the center of mass frame and vice versa

    Thank you, what a stupid error. I was so confused. Can you please confirm that, given a particle energy and momentum in the center of mass frame, the transformations to find the same quantities in the lab frame are (in natural units): ##E_{lab}=\gamma _{cm}E_{cm}+\beta _{cm}\gamma...
  6. lLehner95

    Find the photon energy in the center of mass frame and vice versa

    I tried to use the Lorentz transformation: ##E^{*}_{\gamma }=\gamma _{cm}E_{\gamma }-\beta _{cm}\gamma _{cm}p_{\gamma }## We have a photon, so it becomes: ##E^{*}_{\gamma }=\gamma _{cm}E_{\gamma }(\beta _{cm}-1)## Unfortunately, the solutions say that the correct way is to use the inverse...
  7. lLehner95

    Longitudinal distribution for a neutrino beam

    In the center of mass frame of reference i found that ##p^{*}=\frac{[(M^{2}-m_{\nu}^{2}-m_{K}^{2})^{2}-4m_{\nu}^{2}m_{K}^{2})]^{1/2}}{2M}##. I don't know how to find the momentum distribution ##p_{L}(\theta)## considering that i have 2 different mesons with a specific number ratio...
  8. lLehner95

    What University in Berlin Is Lucy Studying Physics At?

    Hello everybody :) I'm Lucy and I'm from NY. Now I'm in Berlin to study physics. I'm interested in environmental physics, violin and base jumping, i hope to learn a lot in this forum. See you soon! Lucy.
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