Search for scalar bottom quarks and third-generation leptoquarks in $p\bar{p}$ collisions at $\sqrt{s}$ = 1.96 TeV

Abstract

We present the results of a search for pair production of scalar bottom quarks (${\tilde{b}}_1$) and scalar third-generation leptoquarks ($L{Q}_3$) in a data sample of 5.2 $f{b}^{-1}$ collected by the D0 experiment at the Tevatron, the $p\bar{p}$ collider at Fermilab. We assume that sbottoms decay to a neutralino (${\tilde{\chi }}_1^0$) and a b quark, and we set 95% C.L. lower limits on their production in the ($m_{{\tilde{b}}_1}$, $m_{{\tilde{\chi }}_1^0}$) mass plane such that $m_{{\tilde{b}}_1}>247$ GeV for $m_{{\tilde{\chi }}_1^0}=0$ and $m_{{\tilde{\chi }}_1^0}>110$ GeV for $160<m_{{\tilde{b}}_1}<200$ GeV. The leptoquarks are assumed to decay to a tau neutrino and a b quark, and we set a 95% C.L. lower limit of 247 GeV on the mass of a charge-1/3 third-generation leptoquark.

arXiv commentProceedings of ICHEP2010