Relativistic Angular Momentum?

LarryS
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What is the mathematical definition of Angular Momentum in Special Relativity? Is there a definition that does not require knowledge of two-forms, tensors, etc.? As always, thanks in advance.
 
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referframe said:
What is the mathematical definition of Angular Momentum in Special Relativity? Is there a definition that does not require knowledge of two-forms, tensors, etc.? As always, thanks in advance.

The total angular momentum of any system of massive spinless particles is

\mathbf{J} = \sum_{i}^N \mathbf{r}_i \times \mathbf{p}_i

where \mathbf{r}_i are particles positions and \mathbf{p}_i are their momenta. This definition is valid in both non-relativistic and relativistic mechanics.
 

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