Speaker: Elin Bergeaas Kuutmann
Title  : "Boosting the physics at the LHC: high-energetic top quarks in
the ATLAS detector"
Time   : Thursday August 30 at 15.15
Place  : H422

Abstract:
Since the start of the Large Hadron Collider in 2009, many proposed
theories for new physical phenomena beyond the Standard Model have been
excluded using the data collected. In order to fully exploit the
potential of the LHC, we now need to develop new more advanced
algorithms for the reconstruction of the very high-energetic tail of the
data.

Very heavy particles can lead to decay products that are highly boosted
in the detector rest-frame. Within the ATLAS experiment at the LHC, new
methods for the reconstruction of these very high-energetic particles
have been developed in the last few years, and some of them have
recently been tested on collision data.

In the seminar recent examples showing the application of these new
reconstruction techniques will be presented, with a special focus on top
quarks. Two of the new models investigated are the possible existence of
Kaluza-Klein gluons and a new heavy vector boson, Z'. The current limits
on these hypothetical particles will be discussed and the future for
such searches outlined.