Author/Authors :
Adinolfi، نويسنده , , M and Ambrosino، نويسنده , , F and Antonelli، نويسنده , , A and Antonelli، نويسنده , , M and Anulli، نويسنده , , F and Barbiellini، نويسنده , , G and Bencivenni، نويسنده , , G and Bertolucci، نويسنده , , S and Bini، نويسنده , , C and Bloise، نويسنده , , C and Bocci، نويسنده , , V and Bossi، نويسنده , , F and Branchini، نويسنده , , P and Cabibbo، نويسنده , , G and Caloi، نويسنده , , R and Campana، نويسنده , , P and Casarsa، نويسنده ,
Abstract :
The KLOE detector was designed primarily for the study of CP violation in neutral kaon decays at DAΦNE, the Frascati φ-factory. The detector consists of a tracker and an electromagnetic calorimeter. A lead-scintillating-fiber sampling calorimeter satisfies best the requirements of the experiment, providing adequate energy resolution and superior timing accuracy. We describe in the following the construction of the calorimeter, its calibration and how the calorimeter information is used to obtain energy, point of entry and time of the arrival of photons, electrons and charged particles. With e+e− collision data at DAΦNE for an integrated luminosity of some 2 pb−1 we find for electromagnetic showers, an energy resolution of 5.7%/E(GeV) and a time resolution of 54/E(GeV) ps. We also present a measurement of efficiency for low energy photons.
