arXiv subjects

Lars Sonnenschein

Publications and source records attributed to Lars Sonnenschein.

20 records · Page 2Linked to original sources

arXiv2004

CDF and D0 top quark cross section measurements

Preliminary results of ttbar cross section measurements and single top exclusion limits of the Tevatron experiments CDF and D0 are presented. The different measurements are based on a dataset between 140 and 200 inverse pb corresponding to a data taking period from spring 2002 to September 2003. The ttbar cross section measurements are consistent with each other and the Standard Model prediction. Data and Monte-Carlo prediction are in good agreement in the search for single top quark. Its observation is anticipated with roughly 2 inverse fb integrated luminosity.

hep-ex↗

arXiv2004

The D0 Silicon Track Trigger

The Level-2 Silicon Track Trigger preprocessor (L2 STT) of the D0 detector in Run II is described. It performs a precise reconstruction of charged particle tracks in the Central Fiber Tracker (CFT) and the Silicon Microstrip Tracker (SMT). Events with displaced tracks originating from the decay of long living particles such as B hadrons are triggered on. The presence of b quarks contained in such hadrons is relevant for B physics and crucial as signature of top quark and Higgs boson decays.

physics.ins-det↗