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Higher order graviton scattering in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>M</mml:mi><mml:mo>(</mml:mo><mml:mi mathvariant="normal">atrix</mml:mi><mml:mo>)</mml:mo></mml:math>theory
In matrix theory the effective action for graviton-graviton scattering is a double expansion in the relative velocity and inverse separation. We discuss the systematics of this expansion and subject matrix theory to a new test. Low-energy supergravity predicts the coefficient of the ${v}^{6}{/r}^{14}$ term, a two-loop effect, in agreement with …