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Determine whether this requires two distinct relaxation rates (transport and Hall) or follows from a single anisotropic scattering rate on a Fermi surface with hot and cold regions. An answer is a model that reproduces both laws and their doping dependence with one parameter set.","problem_ref":"a86192b2af51a2db41ce759971b8e2a9b81ef03f1564f2469e0e1b7d953d803a","references":"","settled_by":"Angle-dependent magnetoresistance mapping of the momentum-resolved scattering rate, fed into a Boltzmann or non-quasiparticle calculation that yields both $\\rho_{xx}(T)$ and $\\operatorname{cot}(\\theta_{H})(T)$.","status_note":"","title":"Why Hall angle and resistivity follow different temperature 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