Speaker
Adriano Zallo
(LNF)
Description
A minicalorimeter has been built in the Frascati National
Laboratory (LNF) of INFN for the BESIII detector, based
at the BEPCII storage rings of the Institute of High Energy Physics (IHEP)
of the Chinese Academy of Sciences.
It has been installed in one of the two small-theta angle regions
of BESIII to measure the energy of photons from Initial State
Radiation (ISR) events with an expected resolution
of approximately $10\%/\sqrt E \, (GeV)$.
The technique used is the sandwich of Pb and scintillating fibers
employed for the KLOE calorimeter at the DAFNE accelerator at LNF, but
the readout is actuated by way of bundles of clear plastic fibers.
We present here fabrication details as well as results from tests
in cosmic rays and at the Frascati Beam Test facility (BTF). We also
show its installation in the experimental area and some very early
results from data taken during e+ e- collisions.
Primary author
Dr
Alessandro Calcaterra
(LNF-INFN)
Co-authors
Dr
Adriano Zallo
(LNF-INFN)
Dr
Fabrizio Coccetti
(LNF-INFN)
Dr
Luciano Fava
(Univ.del Piemonte Orientale e INFN, Torino)
Dr
Marco Destefanis
(Univ.Torino e INFN)
Dr
Marco Maggiora
(Univ.Torino e INFN)
Mr
Mario Anelli
(LNF-INFN)
Dr
Michela Greco
(Univ.Torino e INFN)
Dr
Monica Bertani
(LNF-INFN)
Dr
Rinaldo Baldini Ferroli
(LNF-INFN)
Dr
Simone Pacetti
(Univ.Perugia e INFN)
Dr
Stefano Sosio
(Univ.Torino e INFN)
Dr
Stefano Spataro
(Univ.Torino e INFN)
Dr
Stucci Stefania
(LNF-INFN)
