We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.

Durham Research Online
You are in:

Cold collisions of N (S-4) atoms and NH ((3)Sigma) molecules in magnetic fields.

Zuchowski, Piotr S. and Hutson, Jeremy M. (2011) 'Cold collisions of N (S-4) atoms and NH ((3)Sigma) molecules in magnetic fields.', Physical chemistry chemical physics., 13 (9). pp. 3669-3680.


We calculate the interaction potential between N atoms and NH molecules and use it to investigate cold and ultracold collisions important for sympathetic cooling. The ratio of elastic to inelastic cross sections is large over a wide range of collision energy and magnetic field for most isotopic combinations, so that sympathetic cooling of NH molecules by N atoms is a good prospect. However, there are important effects due to a p-wave shape resonance that may inhibit cooling in some cases. We show that scaling the reduced mass used in the collision is approximately equivalent to scaling the interaction potential. We then explore the dependence of the scattering properties on the reduced mass and explain the resonant effects observed using angular-momentum-insensitive quantum defect theory.

Item Type:Article
Full text:(AM) Accepted Manuscript
Download PDF
Publisher Web site:
Date accepted:No date available
Date deposited:27 June 2013
Date of first online publication:2011
Date first made open access:No date available

Save or Share this output

Look up in GoogleScholar