Number of W ->e+/e- events generated = 20000

Pt =(0,inf)
eta=(-2,2)

W->e+/e- events were filtered from the event Tree. 

 FGT straight line tracking(zero magnetic field) method was used to extraporte tracks to z=70cm from the collision vertex.
Events selection: e+/e- tracks where 10<R<40;  
Where, R=sqrt((x_vertex+px/pz*(70-z_vertex))*(x_vertex+px/pz*(70-z_vertex)+((y_vertex+py/pz*(70-z_vertex))*((y_vertex+py/pz*(70-z_vertex)))

Some plots are displays here.

Kinematics Plots for e+/e- events without placing the cut 10<R<40

Energy and momentum Plots for e+/e- events after placing the cut 10<R<40(e+/e- tracks which hits FGT)

Energy distribution