Study of the four-fermion final state at the Z resonance

The correlation is shown for the Monte Carlo events generated with the PYTHIA program, using the LAC1 parametrization of the structure function of the photon.. For the reconstruction

Both the ATLAS 4 and CMS 5 Collaborations have performed measurements of the differential cross section of isolated prompt photon, photon-jet and di-photon production with

4 are the following distributions that would be expected to show dierences due to the presence of additional partons in the nal state: the visible invariant mass of the event (W vis

Measurement of the hadronic photon structure function F _2 γ (x, Q 2 ) in two-photon collisions at LEP.. A. Martin,

Residual cosmic ray and detector noise backgrounds are measured by selecting events slightly out of time with respect to the beam crossing but which pass all other cuts. No such

16 Massachusetts Institute of Technology, Cambridge, MA 02139, USA 17 INFN Sezione di Firenze and University of Florence, I-50125 Florence, Italy 18 European Laboratory for

The second error on the coecients gives the uncertainties from the Monte Carlo models, estimated by repeating the t with values unfolded from TWOGAM.. The measured F 2 shows clearly