The main aim of the KLOE experiment at DA Phi NE, the Frascati phi -factory, is to study CP violation in the K-0-(K) over bar (0) system. Requirements on shower detection are very stringent. An hermetic, lead-scintillating fiber sampling calorimeter has been chosen and built. A review of the methods used to calibrate and reconstruct energy and timing is reported in this paper. Emphasis is given to the calibration procedures developed using the 2.4 pb(-1) collected in 1999. An energy resolution of 5.7% rootE/GeV is achieved together with a linearity in energy response better than 1% above 50 MeV. A time resolution of similar to 54 ps/ rootE/GeV is also measured on samples of radiative Bhabha and Phi decays. (C) 2001 Elsevier Science B.V. Ail rights reserved. RI Gauzzi, Paolo/D-2615-2009; valente, paolo/A-6640-2010; ANTONELLI, ANTONELLA/C-6238-2011; Bellini, Fabio/D-1055-2009; Di Domenico, Antonio/G-6301-2011; De Lucia, Erika/D-2250-2011; Passalacqua, Luca/F-5127-2011; branchini, paolo/A-4857-2011; Murtas, Fabrizio/B-5729-2012
Calibration and reconstruction performances of the KLOE electromagnetic calorimeter
SCURI, Fabrizio;
2001-01-01
Abstract
The main aim of the KLOE experiment at DA Phi NE, the Frascati phi -factory, is to study CP violation in the K-0-(K) over bar (0) system. Requirements on shower detection are very stringent. An hermetic, lead-scintillating fiber sampling calorimeter has been chosen and built. A review of the methods used to calibrate and reconstruct energy and timing is reported in this paper. Emphasis is given to the calibration procedures developed using the 2.4 pb(-1) collected in 1999. An energy resolution of 5.7% rootE/GeV is achieved together with a linearity in energy response better than 1% above 50 MeV. A time resolution of similar to 54 ps/ rootE/GeV is also measured on samples of radiative Bhabha and Phi decays. (C) 2001 Elsevier Science B.V. Ail rights reserved. RI Gauzzi, Paolo/D-2615-2009; valente, paolo/A-6640-2010; ANTONELLI, ANTONELLA/C-6238-2011; Bellini, Fabio/D-1055-2009; Di Domenico, Antonio/G-6301-2011; De Lucia, Erika/D-2250-2011; Passalacqua, Luca/F-5127-2011; branchini, paolo/A-4857-2011; Murtas, Fabrizio/B-5729-2012I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
