Author/Authors :
Baldini، نويسنده , , W. and Bettoni، نويسنده , , D. and Calabrese، نويسنده , , R. and Luppi، نويسنده , , E. and Mussa، نويسنده , , R. and Stancari، نويسنده , , G.، نويسنده ,
Abstract :
Fermilab experiment E835 studies the charmonium states primarily through their electromagnetic decays. A kinematical charged trigger has been designed to select the electromagnetic final states e+e− and e+e−X and the hadronic decay c̄c→φφ→4K±.
iled description of the charged trigger is presented here. The design, its implementation and the performances are given.
