Distribution of reorientation during bacterial tumbles.

<p>Reorientation distribution (circles) during tumbles (obtained on about 1200 tumble events, from Berg and Brown <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0035412#pone.0035412-Berg2" target="_blank">[7]</a>) and best fit (solid line) obtained from Eq.2 corresponding to <i>D<sub>r</sub> = 3.5 rad<sup>2</sup>/s</i>. The tumble times are described by a discrete exponential distribution (mean value <i><τ<sub>tumble</sub>> = 0.14 s</i>, time step <i>Δτ<sub>tumble</sub> = 0.1 s</i>, same conditions as in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0035412#pone.0035412-Berg2" target="_blank">[7]</a>). The distribution of reorientation is well described by a rotational diffusion process.</p>