Journal
PHYSICAL REVIEW LETTERS
Volume 110, Issue 21, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.213202
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Funding
- Foundation for Polish Science International PhD Projects
- TEAM programmes
- EU European Regional Development Fund
- National Center for Science [DEC-2011/01/B/ST2/02030, DEC-2012/07/N/ST2/02879]
- AFOSR MURI [FA9550-09-1-0617]
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We develop a general quantum theory for reactive collisions involving power-law potentials (-1/r(n)) valid from the ultracold up to the high-temperature limit. Our quantum defect framework extends the conventional capture models to include the nonuniversal case when the short-range reaction probability P-re < 1. We present explicit analytical formulas as well as numerical studies for the van der Waals (n = 6) and polarization (n = 4) potentials. Our model agrees well with recent merged beam experiments on Penning ionization, spanning collision energies from 10 mK to 30 K [Henson et al., Science 338, 234 (2012)].
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