The low-energy theorem for the forward compton amplitude of a stationary composite system and the FW additive external electromagnetic interaction
Tóm tắt
We show that the low-energy theorem for the forward Compton amplitude of a stationary composite system in states with nonzero internal orbital angular momentum can only be verified with the use of the FW additive external electromagnetic interaction to order 1/M
3 together with the relativistic c.m. variables to order 1/M
2, contrary to what is usually believed. We also explicitly demonstrate the theorem even when both the constituent particles of the composite system are electrically charged.
Tài liệu tham khảo
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