Commissioning of the new calorimeters of the KLOE-2 experiment

TL;DR

This paper reports on the installation and initial commissioning of three new calorimeters, CCALT and QCALT, in the KLOE-2 experiment to enhance photon detection capabilities at the Frascati laboratory.

Contribution

It introduces the design and commissioning process of the new calorimeters, which are novel additions to the KLOE-2 detector system.

Findings

Successful installation of CCALT and QCALT detectors.

Preliminary operational data collected during initial runs.

Enhanced photon detection capabilities demonstrated.

Abstract

Three new sub-detectors have been installed on May 2013 in the KLOE apparatus of Laboratori Nazionali di Frascati of INFN. Photon detection is improved by means of a small crystal calorimeter, named CCALT, in the very forward direction and of a tungsten-scintillating tile sampling device, named QCALT, instrumenting the low-beta quadrupoles of the accelerator. During the first DA$\phi$NE operations, some preliminary runs, both with and without collisions, have been acquired allowing the commissioning of new subdetectors. In this paper, we report a brief description of QCALT and CCALT and a summary of the commissioning phase.