Assertion: heavy water's neutron | /r/HasProperty | scattered in the center of mass frame
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Source sentences:
text: The ratio of the neutron energy before and after is E'/E = (v')2/(v)2 = [(1+α)+(1-α)cos(θ)]/2 where α=(A-1)2/(A+1)2 and cos(θ) is the angle the neutron was scattered into in the center of mass frame.