Solving for tadpole coefficients in one-loop amplitudes
classification
✦ hep-th
hep-ph
keywords
coefficientsamplitudesintegralsone-loopadditionalbasiscertaincoefficient
read the original abstract
One-loop amplitudes may be expanded in a basis of scalar integrals multiplied by rational coefficients. We relate the coefficient of the one-point integral to the coefficients of higher-point integrals, by considering the effects of introducing an additional, unphysical propagator, subject to certain conditions.
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