Feshbach Resonances in Fermionic Lithium-6
  Feshbach resonances in lithium-6 were experimentally studied and theoretically analyzed. In addition to two previously known s-wave resonances, we found three p-wave resonances. Four of these resonances are narrow and yield a precise value of the singlet scattering length, but do not allow us to accurately predict the location of the broad resonance near 83 mT. Its position was previously measured in a molecule-dissociation experiment for which we, here, discuss systematic shifts. 
C. H. Schunck, M. W. Zwierlein, C. A. Stan, S. M. F. Raupach and W.   Ketterle, A. Simoni, E. Tiesinga, C.J. Williams and P....