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Exploring Ultracold Collisions in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Li</mml:mi></mml:mrow><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>6</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow><mml:mtext>−</mml:mtext><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Cr</mml:mi></mml:mrow><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>53</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:mrow></mml…
We investigate ultracold collisions in a novel mixture of $^{6}\mathrm{Li}$ and $^{53}\mathrm{Cr}$ fermionic atoms, discovering more than 50 interspecies Feshbach resonances via loss spectroscopy. Building a full coupled-channel model, we unambiguously characterize the $^{6}\mathrm{Li}\text{\ensuremath{-}}^{53}\mathrm{Cr}$ scattering properties and yield predictions for other isotopic pairs. In particular, we identify various Feshbach resonances …