Author/Authors :
Anelli، نويسنده , , M. and Baldini Ferroli، نويسنده , , R. and Bertani، نويسنده , , M. and Calcaterra، نويسنده , , A. and Coccetti، نويسنده , , F. and Destefanis، نويسنده , , M. and Fava، نويسنده , , L. and Greco، نويسنده , , M. and Hu، نويسنده , , T. and Maggiora، نويسنده , , M. and Pacetti، نويسنده , , S. and Schioppa، نويسنده , , Fernando M. and Spataro، نويسنده , , S. and Stucci، نويسنده , , S. and Wang، نويسنده , , Y. and Xue، نويسنده , , Z. and Zallo، نويسنده , , A.، نويسنده ,
Abstract :
A small-size calorimeter has been built in the Frascati National Laboratory of INFN for BESIII detector based on the BEPCII storage ring of the Institute of High Energy Physics in Beijing. It has been installed in one of the two small-theta angle regions of BEPCII to measure the energy of photons from Initial State Radiation events and is currently taking data together with BESIII. The detector is a sandwich of Pb and scintillating fibers, the same technique employed for the KLOE calorimeter at the DA Φ NE accelerator, but the readout is actuated by way of bundles of clear plastic fibers. We describe here the fabrication, present results from tests with cosmic rays and at the Frascati Beam Test Facility, the installation in BESIII, and preliminary luminosity measurements.
