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  • Calculating Particle Decay Energies in Relativistic Systems
    Homework Statement A particle with momentum p0, mass m0 and energy E0 decays into two particles with mass m1 and m2 Find the energy of the particle E1 and E2 Homework Equations Four-momentum! The Attempt at a Solution I calculated the energy of particle 1 in S' (system where
  • How Do You Draw Feynman Diagrams for These Particle Reactions?
    The discussion revolves around drawing Feynman diagrams for specific particle reactions, including the decay of a pion into photons, the decay of an anti-lambda baryon, and the interaction of positrons and neutrinos For the pion decay, it is clarified that either quark composition can be used, but the decay is not weak The anti-lambda reaction requires careful attention to charge
  • What Are the Maximum and Minimum Speeds of π Mesons from a Moving K_0 . . .
    The discussion revolves around calculating the maximum and minimum speeds of π mesons resulting from the decay of a K0 meson moving at 0 9c The K0 meson decays into a π+ and π- meson, each initially traveling at 0 85c when at rest The participants express uncertainty about applying the Lorentz transformation equations to find the required speeds The conversation highlights the need for
  • Angle of photon emission from particle decay (Particle Phys)
    Homework Statement a) Particle A decays at rest into two photons Calculate, in terms of the rest mass of A, the energy and momentum of each photon b) In a different reference frame, particle A is initially in motion such that its kinetic energy is equal to its rest energy Find the momentum
  • What Angle Does the Muon Emerge at in Pion Decay?
    Homework Statement A pion traveling at speed v decays into a muon and a neutrino, \pi^- \rightarrow \mu^- + \bar {\nu}_\mu If the neutrino emerges at 90 degrees to the original pion direction, at what angle does the muon come off? Homework Equations Relativistic formulae for energy and momentum, energy and momentum conservation The Attempt at
  • Solving Momentum Energy Conservation: Find Daughter Particle . . .
    The discussion focuses on a particle decay problem involving momentum and energy conservation A particle of rest mass m decays into two daughter particles of rest mass 2m 5 each, moving in the same direction Participants explore the assumption of equal momentum for the daughter particles and the complexities of calculating their velocities in different frames The calculations reveal that in
  • Proving Massless Particles Speed: 0. 5c - Physics Forums
    Homework Statement Massless Particles A neutral pion traveling along the x-axis decays into two photons, one being ejected exactly forward and the other exactly backward The first photon has three times the energy of the second Prove that the original pion had speed 0 5c Homework
  • Negative Pion Decay: Muon Antimuon Neutrino - Physics Forums
    Why is it that a negative pion always decays into a muon and antimuon neutrino? Why not an electron and antielectron neutrino? (and the same for a positive pion)
  • Understanding Decay Schemes to Interpreting Energy Levels and Symbols
    Arrows indicate potential follow-up decays, with specific numbers detailing decay width, energy differences, and decay types Additionally, percentages under I131 show the beta decay distribution leading to various energy levels of the daughter nucleus, while the Qβ- value indicates the excess energy available to beta particles
  • Relativistic Energy: Calculate Decay Product Kinetic Energy
    A radium isotope decays to a radon isotope by emitting an α particle (a helium nucleus) according to the decay scheme 226Ra --> 222Rn + 4He The masses of the atoms are 226 0254 u (226Ra), 222 0176 u (222Rn), and 4 0026 u (4He) What is the total kinetic energy of the decay products (in MeV)? Homework Equations E 0 =mc 2 E=gamma*mc 2 K=gamma





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