Dipolar OH dynamics in a magnetic trap and electric field*

Recently, evaporative cooling of OH radicals have been achieved in a magnetic trap [1]. To understand the dynamics of the gas of molecules inside the trap as it cools down, and/or to understand the loss of molecules when an additional external electric field is turned on, we have to perform a full dynamics calculation using Monte Carlo simulation types. Before this step, we need to know in which directions the molecules are scattered after a collision. For this purpose we will present a calculation of the elastic and inelastic differential cross sections of OH + OH collisions at low and ultralow energies, for different configurations of electric and magnetic fields, and if time, include them in a Monte Carlo simulation to describe the overall dynamics.\\[4pt] [1] Benjamin K. Stuhl, Matthew T. Hummon, Mark Yeo, Goulven Qu\'em\'ener, John L. Bohn, Jun Ye, Nature {\bf 492}, 396 (2012).