Speaker
Marius Groll
(Institut fur Physik-Johannes-Gutenberg-Universitaet)
Description
The study of the associated production of weak vector bosons at LHC
allows to search for New Physics through the measurement of possible
deviations of the weak boson self-couplings from the expectation within
the Standard Model.
The sensitivity of the ATLAS experiment to Standard Model diboson
(W+W−, W± Z, Z Z, W± gamma, and Z gamma ) production in pp
collisions at sqrt(s) = 14 TeV, using final states containing electrons, muons
and photons, is presented. These studies use Monte Carlo data sets (with
full detector simulation) from the ATLAS Computer System Commissioning,
which furthermore include detailled trigger information as well as effects of
detector calibration and alignment corrections. The influence of backgrounds
on diboson detection is assessed using further dedicated large samples of fully
simulated background events.
The sensitivity of the ATLAS experiment to anomalous triple gauge boson
couplings is determined. Even for small integrated luminosities (about 0.1 fb-1)
the sensitivity to anomalous triple gauge boson couplings at the LHC can be
significantly improved by ATLAS, when comparing to results from Tevatron
that use 1.0 fb−1 of data.
Author
Marius Groll
(Institut fur Physik-Johannes-Gutenberg-Universitaet)