Probability distributions for the run-and-tumble bacterial dynamics: An analogy to the Lorentz model K. Martens, L. Angelani, R. Di Leonardo and L. Bocquet Eur. Phys. J. E, 35 9 (2012) 84 Published online: 14 September 2012 DOI: 10.1140/epje/i2012-12084-y