Cookies

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 and ultracold NH-NH collisions in magnetic fields.

Janssen, Liesbeth M.C. and Zuchowski, Piotr S. and van der Avoird, Ad and Groenenboom, Gerrit C. and Hutson, Jeremy M. (2011) 'Cold and ultracold NH-NH collisions in magnetic fields.', Physical review A., 83 (2). 022713.

Abstract

Elastic and spin-changing inelastic collision cross sections are presented for cold and ultracold magnetically trapped NH. The cross sections are obtained from coupled-channel scattering calculations as a function of energy and magnetic field. We specifically investigate the influence of the intramolecular spin-spin, spin-rotation, and intermolecular magnetic dipole coupling on the collision dynamics. It is shown that 15NH is a very suitable candidate for evaporative cooling experiments. The dominant trap-loss mechanism in the ultracold regime originates from the intermolecular dipolar coupling term. At higher energies and fields, intramolecular spin-spin coupling becomes increasingly important. Our qualitative results and conclusions are fairly independent of the exact form of the potential and of the size of the channel basis set.

Item Type:Article
Full text:(VoR) Version of Record
Download PDF
(412Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1103/PhysRevA.83.022713
Publisher statement:© 2011 American Physical Society
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

Export:
Export
Look up in GoogleScholar