Recent content by crit

  1. C

    Why a timelike vector and a null vector cannot be orthogonal?

    Why a timelike vector and a null vector cannot be orthogonal? Isn't a null vector orthogonal to any vector, by definition? Anyway, each component of a vector is multiplied by zero, so in the end the sum is zero.
  2. C

    Calculating Max/Min Energies of Particle P1 in Decay of A

    I have discovered the same reasoning as yours during my last class and I have calculated that momentum of both P2 and P3. But I want mathematical result to tell me that P3 with be the one with the smallest rest mass and not "logic", which in this case is just an intuition (that was also my...
  3. C

    Calculating Max/Min Energies of Particle P1 in Decay of A

    Particle A, at rest, decays into three or more particles: P1, P2, ..., Pn. Determine the maximum and minimum energies that P1 can have in such a decay, in terms of various masses. My solution: First of all, the decay should not occur if the rest mass of A would be smaller than the sum...
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