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Math Help - Reduced mass transformation

  1. #1
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    Reduced mass transformation

    In deriving the reduced mass two-body Hamiltonian from Bethe and Salpeter's book I encountered the attached text. I am unsure of the details behind how they arrive at the first two equations of (5.2). I am looking for the explicit steps in reaching the formulas directly following 'we have...' if anyone can help out
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  2. #2
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    Dec 2007
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    Anchorage, AK
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    Chain Rule

    Are you familiar with the chain rule for partial derivatives? Applying it should give you the formulas.

    --Kevin C.
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  3. #3
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    Re: Chain Rule

    Hi Kevin,

    Thanks for the reply. I employed the chain rule as suggested and it all came out nicely.
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