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Homework Help: Simple 4-momentum question

  1. Jun 9, 2007 #1

    bgy

    User Avatar

    hi,

    Is it true that

    2*(p+p_1)p_3(p+p_1)p_2 - (p_3)(p_2)(p+p_1)^2 = (p_3)(p_2)(p+p_1)^2 ,

    where p,p_1,p_2,p_3 are four vectors? Or simply: associative this operation?
     
  2. jcsd
  3. Jun 9, 2007 #2
    cant quite figure out what u are multiplying by what
    why don't u try using latex format
     
  4. Jun 9, 2007 #3

    bgy

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    ok. See the attachment.
     

    Attached Files:

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