@article{3353,
  author = {R. Pires and M. Repp and J. Ulmanis and E. Kuhnle and M. Weidemüller and T. Tiecke and Chris Greene and Brandon Ruzic and John Bohn and E. Tiemann},
  title = {Analyzing Feshbach resonances: A 6Li - 133 Cs case study},
  abstract = {We provide a comprehensive comparison of a coupled channel calculation, the asymptotic bound-state model (ABM), and the multichannel quantum defect theory (MQDT). Quantitative results for 6 Li − 133 Cs are presented and compared to previously measured  6 Li − 133 Cs
Feshbach resonances (FRs) [Repp et al., Phys. Rev. A 87, 010701(R) (2013)]. We demonstrate how the accuracy of the ABM can be stepwise improved by including magnetic dipole-dipole interactions and coupling to a nondominant virtual state. We present a MQDT calculation, where magnetic dipole-dipole and second-order spin-orbit interactions are included. A frame transformation formalism is introduced, which allows the assignment of measured FRs with only three parameters. All three models achieve a total rms error of < 1 G on the observed FRs. We critically compare the different models in view of the accuracy for the description of FRs and the required input parameters for the calculations.},
  year = {2014},
  journal = {Physical Review A},
  volume = {90},
  pages = {012710},
  month = {2014-07},
  issn = {1050-2947},
  url = {http://link.aps.org/doi/10.1103/PhysRevA.90.012710},
  doi = {10.1103/PhysRevA.90.012710},
}