18-22 February 2019
Vienna University of Technology
Europe/Vienna timezone

A SiPM-based dual-readout calorimeter for future leptonic colliders

19 Feb 2019, 14:50
20m
EI9 ()

EI9

Talk Calorimeters Calorimeter

Speaker

Massimiliano Antonello (Università degli Studi e INFN Milano (IT))

Description

Calorimeters for future leptonic collider experiments have to provide extreme precision in reconstructing energies of both isolated particles and jets springing off the colliding beams. Thanks to the expected energy resolution and the excellent particle ID capability, the dual-readout fibre calorimeter could be a possible solution. This calorimetric technique reconstructs the electromagnetic fraction (fem) by simultaneously measuring the scintillation and the Cherenkov light produced by the showers in the fibres of the calorimeter. In 2017, a first module readout with Silicon PhotoMultipliers (SiPM) was designed, constructed and tested on beam at CERN. The results of this first test completed the proof-of-concept but also pointed out some crucial points to be addressed to make SiPM a reliable solution for dual-readout. Among these it is worth mentioning: the sensor non-linearity response, the optical crosstalk between fibres and the very large number of readout channels required for a full scale module. In 2018, an upgrade of the SiPM-based calorimeter was tested in another beam test. This talk reports the test beam results on the module performance, highlighting as well the key and potentially critical parameters and the adopted solutions. This is including electrical grouping of signals by single sensors, aimed at reducing the number of channels. Finally, the R&D program targeted to the design and construction of the building block of a full scale detector will be presented

Primary author

Massimiliano Antonello (Università degli Studi e INFN Milano (IT))

Co-authors

Prof. Massimo Caccia (Università degli Studi dell'Insubria) Dr Romualdo Santoro (Università degli Studi dell'Insubria) Roberto Ferrari (INFN Pavia (IT)) Lorenzo Pezzotti (Universita and INFN (IT)) Richard wigmans (Texas Tech)

Presentation Materials