Anomalous low-energy electron attachment in C_{60}

We propose that thermal electron attachment to C$_{60}$ should occur preferentially in the p-wave channel, following an analysis of the vibron excitation spectrum of C$_{60}^-$. A very simple model based on this idea is shown to account very well for recent attachment data. The unexplained activation energy of $\approx$ 0.26 eV found experimentally is attributed to the p-wave centrifugal barrier.

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