on minimal allowed masses of superparticles; from [@kneur]. \[fig:exp\]](boos.eps "fig:"){width="3.5cm" height="3cm"} (b)![(a) The $\pi^{\pm}$ energy spectrum from signal (solid line) and background (dotted line); from [@Boos:2005ca]. (b) The normalized distributions in the fraction of $\tau$-jet momentum carried by the charged track for $P_\tau$= +1, +1/2, $-$1/2 and $-$1, and $p^T_{\tau-jet} >$25 GeV; from [@Godbole:2004mq]. (c) Stop discovery reach in $\tilde{t}_1\to c\tilde{\chi}^0_1$ channel in the $m_{\tilde{t}_1}$-$m_{\tilde{\chi}^0_1}$ plane – the $t\to\tilde{t}_1\tilde{\chi}^0_1$ channel was not studied; from [@milstene]. (d) Effects of experimental constraints on minimal allowed masses of superparticles; from [@kneur]. \[fig:exp\]](taupol.eps "fig:"){width="3.5cm" height="3cm"} (c)![(a) The $\pi^{\pm}$ energy spectrum from signal (solid line) and background (dotted line); from [@Boos:2005ca]. (b) The normalized distributions in the fraction of $\tau$-jet momentum carried by the charged track for $P_\tau$= +1, +1/2, $-$1/2 and $-$1, and $p^T_{\tau-jet} >$25 GeV; from [@Godbole:2004mq]. (c) Stop discovery reach in $\tilde{t}_1\to c\tilde{\chi}^0_1$ channel in the $m_{\tilde{t}_1}$-$m_{\tilde{\chi}^0_1}$ plane – the $t\to\tilde{t}_1\tilde{\chi}^0_1$ channel was not studied; from [@milstene]. (d) Effects of experimental constraints on minimal allowed masses of superparticles; from [@kneur]. \[fig:exp\]](milstene.ps "fig:"){width="3.5cm" height="2.5cm"}  (d)

Progress on experimental analyses of stop quarks with small stop-neutralino mass difference has also been reported to this meeting [@milstene; @nowak]. Such analyses are motivated by the stop-neutralino 