ATLAS_2012_I1203852

Back to index

Measurement of the fiducial cross section for $ZZ(*)$ production in proton proton collisions at a centre-of mass energy of 7 TeV, is presented, using data corresponding to an integrated luminosity of 4.6/fb collected by the ATLAS experiment at the Large Hadron Collider. The cross-section is measured using processes with two $Z$ bosons decaying to electrons or muons or with one $Z$ boson decaying to electrons or muons and a second $Z$ boson decaying to neutrinos. The fiducial region contains dressed leptons in restricted $p_T$ and $\eta$ ranges. The selection has specific requirements for both production processes. A measurement of the normalized fiducial cross-section as a function of $ZZ$ invariant mass, leading $Z$ $p_T$ and angle of two leptons coming from the leading $Z$ is also presented for both signal processes.

⚓⌘ d01-x01-y01:

⚓⌘ d01-x01-y02:

⚓⌘ d01-x01-y03:

⚓⌘ d03-x01-y01:

⚓⌘ d04-x01-y01:

⚓⌘ d05-x01-y01:

⚓⌘ d06-x01-y01:

⚓⌘ d07-x01-y01:

⚓⌘ d08-x01-y01: