Squared length of 4-momentum g(p,p)?

  • #1
Homework Statement:
Can someone explain why the squared length of p^2 = p dot p = -m^2 and not -m^2*c^2?
Relevant Equations:
p^2 = p dot p = -m^2
Explained in statement.
 

Answers and Replies

  • #2
Gaussian97
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That depends on two things:
1. What is the metric you use

2. What are the units you are using.
 
  • #3
PeroK
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