LHC is delivering proton-proton collisions at the highest center-of-mass energies of 13 TeV. Also heavy ions, notably lead (Pb) are accelerated in the LHC and brough to collision in dedicated runs.
Further information about ATLAS, LHC and up-to-date reports on the data taking can be found under the links at the bottom of this page.
The scientific programme of the experiment embraces many of the fundamental and open questions in particle physics, e.g :
Search and precision measurement of the Higgs boson
(Discovered 4.7.2012, Nobel Prize 8.10.2013 !)
Search for Super Symmetry
Search for Dark Matter
Search for Extra Dimensions
Search for Black Holes
Search for Quark-Gluon Plasma
Precision measurements of Standard Model particles and interactions.