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Updated: Jun 18, 2026

Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
Published on: March 6, 2017
General theoretical description of N-body recombination
N P Mehta1, Seth T Rittenhouse, J P D'Incao
1Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309, USA. mehtan@jilau1.colorado.edu
Abstract:
Formulas for the cross section and event rate constant describing recombination of N particles are derived in terms of general S-matrix elements. Our result immediately yields the generalized Wigner threshold scaling for the recombination of N bosons. A semianalytical formula encapsulates the overall scaling with energy and scattering length, as well as resonant modifications by the presence of N-body states near the threshold collision energy in the entrance channel. We then apply our model to the case of four-boson recombination into an Efimov trimer and a free atom.
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