Low-energy electron scattering by boron trihalides - art. no. 024701

We report the integral elastic cross section for low-energy electron scatte ring by the boron trihalides BCl3, BBr3, and BI3. To perform our calculatio ns, we employed the Schwinger multichannel method with pseudopotentials. We have focused our attention only in the B-2 irreducible representation, whe re we found shape resonances for the three molecules in a previous static-e xchange calculation, at energies below 5 eV. We included polarization effec ts to improve the description of the resonances and found that only the res onance for BCl3 remains. For BBr3 and BI3, the resonances become bound stat es.