Observation of broad p-wave Feshbach resonances in ultracold   $^{85}$Rb-$^{87}$Rb mixtures
  We observe new Feshbach resonances in ultracold mixtures of $^{85}$Rb and $^{87}$Rb atoms in the $^{85}$Rb$|2, +2\rangle$+$^{87}$Rb$|1, +1\rangle$ and $^{85}$Rb$|2, -2\rangle$+$^{87}$Rb$|1, -1\rangle$ scattering channels. The positions and properties of the resonances are predicted and characterized using the semi-analytic multichannel quantum-defect theory by Gao. Of particular interest, a number of broad entrance-channel dominated p-wave resonances are identified, implicating exciting opportunities for studying a variety of p-wave interaction dominated physics. 
Shen Dong, Yue Cui, Chuyang Shen, Yewei Wu, Meng Khoon Tey, Li You, Bo   Gao
cond-mat.quant-gas physics.atom-ph