PT Journal
AU CDF Collaboration (Aaltonen, Tea
   Cabrera, S
TI Search for the Production of Scalar Bottom Quarks in p(p)over-bar Collisions at root s=1.96 TeV
SO Physical Review Letters
JI Phys. Rev. Lett.
PY 2010
BP 081802
EP 7pp
VL 105
IS 8
DI 10.1103/PhysRevLett.105.081802
LA English
AB We report on a search for direct scalar bottom quark (sbottom) pair production in p (p) over bar collisions at root s = 1.96 TeV, in events with large missing transverse energy and two jets of hadrons in the final state, where at least one of the jets is required to be identified as originating from a b quark. The study uses a collider detector at Fermilab Run II data sample corresponding to 2.65 fb(-1) of integrated luminosity. The data are in agreement with the standard model. In an R-parity conserving minimal supersymmetric scenario, and assuming that the sbottom decays exclusively into a bottom quark and a neutralino, 95% confidence-level upper limits on the sbottom pair production cross section of 0.1 pb are obtained. For neutralino masses below 70 GeV/c(2), sbottom masses up to 230 GeV/c(2) are excluded at 95% confidence level.
ER