  We investigate parity-odd non-dissipative transport in an anisotropic Dirac
semi-metal in two spatial dimensions. The analysis is relevant for interacting
electronic systems with merging Dirac points at charge neutrality. For such
systems the dispersion relation is relativistic in one direction and
non-relativistic in the other. We give a proposal how to calculate the Berry
curvature for this system and use it to derive more than one odd viscosities,
in contrast to rotationally invariant systems. We observe that in such a model
the odd part of stress tensor is parameterised by two independent transport
coefficients and one that is identically zero.

Strongly Correlated Electrons;Mesoscale and Nanoscale Physics;High Energy Physics - Theory