Document Type

Article

Publication Date

10-2009

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.

Required Publisher Statement

© 2009 The American Physical Society

Document Object Identifier (DOI)

10.1103/PhysRevLett.103.153201

Publication Information

Physical Review Letters

Included in

Physics Commons

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