Marta Felcini
(University College Dublin)
15/09/2009, 11:20
The ATLAS and CMS trigger systems have been designed to cope with unprecedented luminosities and accelerator bunch-crossing conditions. Trigger selections have been designed to have high efficiency for SM processes. Top-quark production is one of those for which the trigger efficiency is expected to be very high. This should ensure high efficiency for single top and fourth-generation quarks....
Clemens Lange
(DESY Zeuthen)
15/09/2009, 11:45
The identification of jets originating from a b quark is called b-tagging. It takes advantage of several of the b quark's properties such as the relatively long lifetime of the b-hadron and the therefore existing secondary vertex in the jet. The use of b-tagging is an essential ingredient for the selection of single top events. These contain a b quark from the top quark decay, which makes it...
Julien Donini
(Universite Joseph Fourier Grenoble)
15/09/2009, 12:10
The search for Single Top process at LHC using first data will involve several steps, from the identification and reconstruction of objects that characterize Single Top signature (lepton, missing transverse energy, b-jet) to the reduction and modeling of the main backgrounds (multijet, W+jets, ttbar) and the selection of a purified signal sample using advanced statistical techniques. The...
