Speaker
Simone Zimmermann
(Universitaet Bonn (DE))
Description
A search for long-lived, multi-charged particles has been performed using
the ATLAS detector.We have examined data taken during the 2011
LHC running, corresponding to an integrated luminosity of 4.4 fb−1.
A search was made for charged particle tracks exhibiting anomalously
high ionization consistent with stable massive particles with charges
from |q|=2e to |q|=6e. For this search new variables of specific
energy loss per path length (dE/dx) have been developed and used
in the candidate selection. No excess is observed with respect to the
prediction of Standard Model processes. The 95% C.L. cross-section
limits are also interpreted as exclusion limits for a simplified Drell-Yan
production model.
Author
Simone Zimmermann
(Universitaet Bonn (DE))
